Home / 913,394.70-1,370,092.05-282,501.90

Finding the Fourth Proportional to 913,394.70, 1,370,092.05 and 282,501.90

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Solution

The fourth proportional to 913,394.70, 1,370,092.05 and 282,501.90 is: 423,752.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,394.70 : 1,370,092.05 = 282,501.90 : x
  2. Step 2: Convert to fraction form
    913,394.70/1,370,092.05 = 282,501.90/x
  3. Step 3: Cross multiply
    913,394.70x = 1,370,092.05 × 282,501.90
  4. Step 4: Simplify right side
    913,394.70x = 387,053,607,299.90
  5. Step 5: Solve for x
    x = 387,053,607,299.90/913,394.70
  6. Step 6: Final answer
    x = 423,752.85

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Double scale
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Similar ratio
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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.