Home / 726,748.70-1,090,123.05-569,111.90

Finding the Fourth Proportional to 726,748.70, 1,090,123.05 and 569,111.90

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Solution

The fourth proportional to 726,748.70, 1,090,123.05 and 569,111.90 is: 853,667.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,748.70 : 1,090,123.05 = 569,111.90 : x
  2. Step 2: Convert to fraction form
    726,748.70/1,090,123.05 = 569,111.90/x
  3. Step 3: Cross multiply
    726,748.70x = 1,090,123.05 × 569,111.90
  4. Step 4: Simplify right side
    726,748.70x = 620,402,000,219.30
  5. Step 5: Solve for x
    x = 620,402,000,219.30/726,748.70
  6. Step 6: Final answer
    x = 853,667.85

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Double scale
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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.