Home / 572,182.12-858,838.16-429,531.40

Finding the Fourth Proportional to 572,182.12, 858,838.16 and 429,531.40

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Solution

The fourth proportional to 572,182.12, 858,838.16 and 429,531.40 is: 644,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,182.12 : 858,838.16 = 429,531.40 : x
  2. Step 2: Convert to fraction form
    572,182.12/858,838.16 = 429,531.40/x
  3. Step 3: Cross multiply
    572,182.12x = 858,838.16 × 429,531.40
  4. Step 4: Simplify right side
    572,182.12x = 368,897,957,238.22
  5. Step 5: Solve for x
    x = 368,897,957,238.22/572,182.12
  6. Step 6: Final answer
    x = 644,721.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.