Home / 875,432.72-1,208,326.56-570,346.40

Finding the Fourth Proportional to 875,432.72, 1,208,326.56 and 570,346.40

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Solution

The fourth proportional to 875,432.72, 1,208,326.56 and 570,346.40 is: 787,227.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,432.72 : 1,208,326.56 = 570,346.40 : x
  2. Step 2: Convert to fraction form
    875,432.72/1,208,326.56 = 570,346.40/x
  3. Step 3: Cross multiply
    875,432.72x = 1,208,326.56 × 570,346.40
  4. Step 4: Simplify right side
    875,432.72x = 689,164,703,520.38
  5. Step 5: Solve for x
    x = 689,164,703,520.38/875,432.72
  6. Step 6: Final answer
    x = 787,227.49

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Double scale
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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.