Home / 865,426.12-1,194,281.43-478,267.57

Finding the Fourth Proportional to 865,426.12, 1,194,281.43 and 478,267.57

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Solution

The fourth proportional to 865,426.12, 1,194,281.43 and 478,267.57 is: 660,005.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,426.12 : 1,194,281.43 = 478,267.57 : x
  2. Step 2: Convert to fraction form
    865,426.12/1,194,281.43 = 478,267.57/x
  3. Step 3: Cross multiply
    865,426.12x = 1,194,281.43 × 478,267.57
  4. Step 4: Simplify right side
    865,426.12x = 571,186,077,422.23
  5. Step 5: Solve for x
    x = 571,186,077,422.23/865,426.12
  6. Step 6: Final answer
    x = 660,005.59

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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.