Home / 969,929.16-1,338,543.78-540,209.40

Finding the Fourth Proportional to 969,929.16, 1,338,543.78 and 540,209.40

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Solution

The fourth proportional to 969,929.16, 1,338,543.78 and 540,209.40 is: 745,512.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,929.16 : 1,338,543.78 = 540,209.40 : x
  2. Step 2: Convert to fraction form
    969,929.16/1,338,543.78 = 540,209.40/x
  3. Step 3: Cross multiply
    969,929.16x = 1,338,543.78 × 540,209.40
  4. Step 4: Simplify right side
    969,929.16x = 723,093,932,267.53
  5. Step 5: Solve for x
    x = 723,093,932,267.53/969,929.16
  6. Step 6: Final answer
    x = 745,512.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.