Home / 715,348.95-987,267.38-429,026.55

Finding the Fourth Proportional to 715,348.95, 987,267.38 and 429,026.55

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Solution

The fourth proportional to 715,348.95, 987,267.38 and 429,026.55 is: 592,108.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,348.95 : 987,267.38 = 429,026.55 : x
  2. Step 2: Convert to fraction form
    715,348.95/987,267.38 = 429,026.55/x
  3. Step 3: Cross multiply
    715,348.95x = 987,267.38 × 429,026.55
  4. Step 4: Simplify right side
    715,348.95x = 423,563,917,968.94
  5. Step 5: Solve for x
    x = 423,563,917,968.94/715,348.95
  6. Step 6: Final answer
    x = 592,108.11

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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.