Home / 531,742.32-733,762.80-290,010.78

Finding the Fourth Proportional to 531,742.32, 733,762.80 and 290,010.78

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Solution

The fourth proportional to 531,742.32, 733,762.80 and 290,010.78 is: 400,192.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,742.32 : 733,762.80 = 290,010.78 : x
  2. Step 2: Convert to fraction form
    531,742.32/733,762.80 = 290,010.78/x
  3. Step 3: Cross multiply
    531,742.32x = 733,762.80 × 290,010.78
  4. Step 4: Simplify right side
    531,742.32x = 212,799,121,962.98
  5. Step 5: Solve for x
    x = 212,799,121,962.98/531,742.32
  6. Step 6: Final answer
    x = 400,192.19

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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.