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Finding the Fourth Proportional to 418,750.18, 577,822.80 and 283,079.32

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Solution

The fourth proportional to 418,750.18, 577,822.80 and 283,079.32 is: 390,614.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,750.18 : 577,822.80 = 283,079.32 : x
  2. Step 2: Convert to fraction form
    418,750.18/577,822.80 = 283,079.32/x
  3. Step 3: Cross multiply
    418,750.18x = 577,822.80 × 283,079.32
  4. Step 4: Simplify right side
    418,750.18x = 163,569,685,304.50
  5. Step 5: Solve for x
    x = 163,569,685,304.50/418,750.18
  6. Step 6: Final answer
    x = 390,614.01

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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.