Home / 1,274,031,678.48-1,758,051,577.44-709,473,899.76

Finding the Fourth Proportional to 1,274,031,678.48, 1,758,051,577.44 and 709,473,899.76

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Solution

The fourth proportional to 1,274,031,678.48, 1,758,051,577.44 and 709,473,899.76 is: 979,011,534.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,031,678.48 : 1,758,051,577.44 = 709,473,899.76 : x
  2. Step 2: Convert to fraction form
    1,274,031,678.48/1,758,051,577.44 = 709,473,899.76/x
  3. Step 3: Cross multiply
    1,274,031,678.48x = 1,758,051,577.44 × 709,473,899.76
  4. Step 4: Simplify right side
    1,274,031,678.48x = 1,247,291,708,625,576,448
  5. Step 5: Solve for x
    x = 1,247,291,708,625,576,448/1,274,031,678.48
  6. Step 6: Final answer
    x = 979,011,534.56

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.