Home / 1,020,115.12-1,529,516.56-487,624.36

Finding the Fourth Proportional to 1,020,115.12, 1,529,516.56 and 487,624.36

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Solution

The fourth proportional to 1,020,115.12, 1,529,516.56 and 487,624.36 is: 731,122.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,115.12 : 1,529,516.56 = 487,624.36 : x
  2. Step 2: Convert to fraction form
    1,020,115.12/1,529,516.56 = 487,624.36/x
  3. Step 3: Cross multiply
    1,020,115.12x = 1,529,516.56 × 487,624.36
  4. Step 4: Simplify right side
    1,020,115.12x = 745,829,533,679.40
  5. Step 5: Solve for x
    x = 745,829,533,679.40/1,020,115.12
  6. Step 6: Final answer
    x = 731,122.91

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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.