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Finding the Fourth Proportional to 608,631.40, 912,947.10 and 563,141.80

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Solution

The fourth proportional to 608,631.40, 912,947.10 and 563,141.80 is: 844,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,631.40 : 912,947.10 = 563,141.80 : x
  2. Step 2: Convert to fraction form
    608,631.40/912,947.10 = 563,141.80/x
  3. Step 3: Cross multiply
    608,631.40x = 912,947.10 × 563,141.80
  4. Step 4: Simplify right side
    608,631.40x = 514,118,673,198.78
  5. Step 5: Solve for x
    x = 514,118,673,198.78/608,631.40
  6. Step 6: Final answer
    x = 844,712.70

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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.