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Finding the Fourth Proportional to 499,015.04, 688,632.72 and 272,655.68

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Solution

The fourth proportional to 499,015.04, 688,632.72 and 272,655.68 is: 376,260.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,015.04 : 688,632.72 = 272,655.68 : x
  2. Step 2: Convert to fraction form
    499,015.04/688,632.72 = 272,655.68/x
  3. Step 3: Cross multiply
    499,015.04x = 688,632.72 × 272,655.68
  4. Step 4: Simplify right side
    499,015.04x = 187,759,622,541.85
  5. Step 5: Solve for x
    x = 187,759,622,541.85/499,015.04
  6. Step 6: Final answer
    x = 376,260.45

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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.