Home / 687,236.61-948,418.46-429,266.29

Finding the Fourth Proportional to 687,236.61, 948,418.46 and 429,266.29

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Solution

The fourth proportional to 687,236.61, 948,418.46 and 429,266.29 is: 592,407.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,236.61 : 948,418.46 = 429,266.29 : x
  2. Step 2: Convert to fraction form
    687,236.61/948,418.46 = 429,266.29/x
  3. Step 3: Cross multiply
    687,236.61x = 948,418.46 × 429,266.29
  4. Step 4: Simplify right side
    687,236.61x = 407,124,074,976.99
  5. Step 5: Solve for x
    x = 407,124,074,976.99/687,236.61
  6. Step 6: Final answer
    x = 592,407.43

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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.