Home / 1,420,126.40-2,131,501.80-710,663.60

Finding the Fourth Proportional to 1,420,126.40, 2,131,501.80 and 710,663.60

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Solution

The fourth proportional to 1,420,126.40, 2,131,501.80 and 710,663.60 is: 1,066,652.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,126.40 : 2,131,501.80 = 710,663.60 : x
  2. Step 2: Convert to fraction form
    1,420,126.40/2,131,501.80 = 710,663.60/x
  3. Step 3: Cross multiply
    1,420,126.40x = 2,131,501.80 × 710,663.60
  4. Step 4: Simplify right side
    1,420,126.40x = 1,514,780,742,594.48
  5. Step 5: Solve for x
    x = 1,514,780,742,594.48/1,420,126.40
  6. Step 6: Final answer
    x = 1,066,652.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.