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Finding the Fourth Proportional to 578,005.60, 807,633.20 and 578,005.60

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Solution

The fourth proportional to 578,005.60, 807,633.20 and 578,005.60 is: 807,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,005.60 : 807,633.20 = 578,005.60 : x
  2. Step 2: Convert to fraction form
    578,005.60/807,633.20 = 578,005.60/x
  3. Step 3: Cross multiply
    578,005.60x = 807,633.20 × 578,005.60
  4. Step 4: Simplify right side
    578,005.60x = 466,816,512,345.92
  5. Step 5: Solve for x
    x = 466,816,512,345.92/578,005.60
  6. Step 6: Final answer
    x = 807,633.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.