Home / 912,542.88-1,369,047.92-379,886.88

Finding the Fourth Proportional to 912,542.88, 1,369,047.92 and 379,886.88

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Solution

The fourth proportional to 912,542.88, 1,369,047.92 and 379,886.88 is: 569,927.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,542.88 : 1,369,047.92 = 379,886.88 : x
  2. Step 2: Convert to fraction form
    912,542.88/1,369,047.92 = 379,886.88/x
  3. Step 3: Cross multiply
    912,542.88x = 1,369,047.92 × 379,886.88
  4. Step 4: Simplify right side
    912,542.88x = 520,083,342,899.29
  5. Step 5: Solve for x
    x = 520,083,342,899.29/912,542.88
  6. Step 6: Final answer
    x = 569,927.57

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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.