Home / 745,126.19-1,117,769.27-318,706.30

Finding the Fourth Proportional to 745,126.19, 1,117,769.27 and 318,706.30

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Solution

The fourth proportional to 745,126.19, 1,117,769.27 and 318,706.30 is: 478,093.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,126.19 : 1,117,769.27 = 318,706.30 : x
  2. Step 2: Convert to fraction form
    745,126.19/1,117,769.27 = 318,706.30/x
  3. Step 3: Cross multiply
    745,126.19x = 1,117,769.27 × 318,706.30
  4. Step 4: Simplify right side
    745,126.19x = 356,240,108,295.40
  5. Step 5: Solve for x
    x = 356,240,108,295.40/745,126.19
  6. Step 6: Final answer
    x = 478,093.66

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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.