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Finding the Fourth Proportional to 578,003.70, 867,005.55 and 472,941.30

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Solution

The fourth proportional to 578,003.70, 867,005.55 and 472,941.30 is: 709,411.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,003.70 : 867,005.55 = 472,941.30 : x
  2. Step 2: Convert to fraction form
    578,003.70/867,005.55 = 472,941.30/x
  3. Step 3: Cross multiply
    578,003.70x = 867,005.55 × 472,941.30
  4. Step 4: Simplify right side
    578,003.70x = 410,042,731,924.22
  5. Step 5: Solve for x
    x = 410,042,731,924.22/578,003.70
  6. Step 6: Final answer
    x = 709,411.95

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Double scale
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Similar ratio
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1.5x scale

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.