Home / 917,672.70-1,376,509.05-386,231.70

Finding the Fourth Proportional to 917,672.70, 1,376,509.05 and 386,231.70

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Solution

The fourth proportional to 917,672.70, 1,376,509.05 and 386,231.70 is: 579,347.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,672.70 : 1,376,509.05 = 386,231.70 : x
  2. Step 2: Convert to fraction form
    917,672.70/1,376,509.05 = 386,231.70/x
  3. Step 3: Cross multiply
    917,672.70x = 1,376,509.05 × 386,231.70
  4. Step 4: Simplify right side
    917,672.70x = 531,651,430,446.89
  5. Step 5: Solve for x
    x = 531,651,430,446.89/917,672.70
  6. Step 6: Final answer
    x = 579,347.55

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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.