Home / 912,821.10-1,369,231.65-907,572.30

Finding the Fourth Proportional to 912,821.10, 1,369,231.65 and 907,572.30

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Solution

The fourth proportional to 912,821.10, 1,369,231.65 and 907,572.30 is: 1,361,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,821.10 : 1,369,231.65 = 907,572.30 : x
  2. Step 2: Convert to fraction form
    912,821.10/1,369,231.65 = 907,572.30/x
  3. Step 3: Cross multiply
    912,821.10x = 1,369,231.65 × 907,572.30
  4. Step 4: Simplify right side
    912,821.10x = 1,242,676,717,823.30
  5. Step 5: Solve for x
    x = 1,242,676,717,823.30/912,821.10
  6. Step 6: Final answer
    x = 1,361,358.45

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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.