Home / 969,878.37-1,338,432.18-540,158.47

Finding the Fourth Proportional to 969,878.37, 1,338,432.18 and 540,158.47

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Solution

The fourth proportional to 969,878.37, 1,338,432.18 and 540,158.47 is: 745,418.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,878.37 : 1,338,432.18 = 540,158.47 : x
  2. Step 2: Convert to fraction form
    969,878.37/1,338,432.18 = 540,158.47/x
  3. Step 3: Cross multiply
    969,878.37x = 1,338,432.18 × 540,158.47
  4. Step 4: Simplify right side
    969,878.37x = 722,965,478,547.57
  5. Step 5: Solve for x
    x = 722,965,478,547.57/969,878.37
  6. Step 6: Final answer
    x = 745,418.70

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1.5x scale

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.