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Finding the Fourth Proportional to 633,746.52, 874,243.08 and 429,728.40

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Solution

The fourth proportional to 633,746.52, 874,243.08 and 429,728.40 is: 592,803.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,746.52 : 874,243.08 = 429,728.40 : x
  2. Step 2: Convert to fraction form
    633,746.52/874,243.08 = 429,728.40/x
  3. Step 3: Cross multiply
    633,746.52x = 874,243.08 × 429,728.40
  4. Step 4: Simplify right side
    633,746.52x = 375,687,079,979.47
  5. Step 5: Solve for x
    x = 375,687,079,979.47/633,746.52
  6. Step 6: Final answer
    x = 592,803.38

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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.