Home / 985,156.72-1,359,489.12-555,433.12

Finding the Fourth Proportional to 985,156.72, 1,359,489.12 and 555,433.12

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Solution

The fourth proportional to 985,156.72, 1,359,489.12 and 555,433.12 is: 766,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,156.72 : 1,359,489.12 = 555,433.12 : x
  2. Step 2: Convert to fraction form
    985,156.72/1,359,489.12 = 555,433.12/x
  3. Step 3: Cross multiply
    985,156.72x = 1,359,489.12 × 555,433.12
  4. Step 4: Simplify right side
    985,156.72x = 755,105,283,527.65
  5. Step 5: Solve for x
    x = 755,105,283,527.65/985,156.72
  6. Step 6: Final answer
    x = 766,482.40

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Double scale
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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.