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Finding the Fourth Proportional to 555,343.02, 766,329.18 and 313,649.16

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Solution

The fourth proportional to 555,343.02, 766,329.18 and 313,649.16 is: 432,810.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,343.02 : 766,329.18 = 313,649.16 : x
  2. Step 2: Convert to fraction form
    555,343.02/766,329.18 = 313,649.16/x
  3. Step 3: Cross multiply
    555,343.02x = 766,329.18 × 313,649.16
  4. Step 4: Simplify right side
    555,343.02x = 240,358,503,590.49
  5. Step 5: Solve for x
    x = 240,358,503,590.49/555,343.02
  6. Step 6: Final answer
    x = 432,810.88

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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.