Home / 498,727.32-688,244.49-283,867.40

Finding the Fourth Proportional to 498,727.32, 688,244.49 and 283,867.40

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Solution

The fourth proportional to 498,727.32, 688,244.49 and 283,867.40 is: 391,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,727.32 : 688,244.49 = 283,867.40 : x
  2. Step 2: Convert to fraction form
    498,727.32/688,244.49 = 283,867.40/x
  3. Step 3: Cross multiply
    498,727.32x = 688,244.49 × 283,867.40
  4. Step 4: Simplify right side
    498,727.32x = 195,370,169,080.07
  5. Step 5: Solve for x
    x = 195,370,169,080.07/498,727.32
  6. Step 6: Final answer
    x = 391,737.45

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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.