Home / 771,911.76-1,065,272.22-427,746.76

Finding the Fourth Proportional to 771,911.76, 1,065,272.22 and 427,746.76

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Solution

The fourth proportional to 771,911.76, 1,065,272.22 and 427,746.76 is: 590,309.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,911.76 : 1,065,272.22 = 427,746.76 : x
  2. Step 2: Convert to fraction form
    771,911.76/1,065,272.22 = 427,746.76/x
  3. Step 3: Cross multiply
    771,911.76x = 1,065,272.22 × 427,746.76
  4. Step 4: Simplify right side
    771,911.76x = 455,666,740,623.01
  5. Step 5: Solve for x
    x = 455,666,740,623.01/771,911.76
  6. Step 6: Final answer
    x = 590,309.36

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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.