Home / 499,130.56-688,798.65-272,776.06

Finding the Fourth Proportional to 499,130.56, 688,798.65 and 272,776.06

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Solution

The fourth proportional to 499,130.56, 688,798.65 and 272,776.06 is: 376,430.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,130.56 : 688,798.65 = 272,776.06 : x
  2. Step 2: Convert to fraction form
    499,130.56/688,798.65 = 272,776.06/x
  3. Step 3: Cross multiply
    499,130.56x = 688,798.65 × 272,776.06
  4. Step 4: Simplify right side
    499,130.56x = 187,887,781,880.32
  5. Step 5: Solve for x
    x = 187,887,781,880.32/499,130.56
  6. Step 6: Final answer
    x = 376,430.13

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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.