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Finding the Fourth Proportional to 660,337.80, 990,506.70 and 565,859.40

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Solution

The fourth proportional to 660,337.80, 990,506.70 and 565,859.40 is: 848,789.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,337.80 : 990,506.70 = 565,859.40 : x
  2. Step 2: Convert to fraction form
    660,337.80/990,506.70 = 565,859.40/x
  3. Step 3: Cross multiply
    660,337.80x = 990,506.70 × 565,859.40
  4. Step 4: Simplify right side
    660,337.80x = 560,487,526,957.98
  5. Step 5: Solve for x
    x = 560,487,526,957.98/660,337.80
  6. Step 6: Final answer
    x = 848,789.10

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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.