Home / 709,557.20-1,064,638.20-372,856.40

Finding the Fourth Proportional to 709,557.20, 1,064,638.20 and 372,856.40

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Solution

The fourth proportional to 709,557.20, 1,064,638.20 and 372,856.40 is: 559,443.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,557.20 : 1,064,638.20 = 372,856.40 : x
  2. Step 2: Convert to fraction form
    709,557.20/1,064,638.20 = 372,856.40/x
  3. Step 3: Cross multiply
    709,557.20x = 1,064,638.20 × 372,856.40
  4. Step 4: Simplify right side
    709,557.20x = 396,957,166,554.48
  5. Step 5: Solve for x
    x = 396,957,166,554.48/709,557.20
  6. Step 6: Final answer
    x = 559,443.50

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Double scale
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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.