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Finding the Fourth Proportional to 610,478.50, 911,271.56 and 565,453.64

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Solution

The fourth proportional to 610,478.50, 911,271.56 and 565,453.64 is: 844,062.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,478.50 : 911,271.56 = 565,453.64 : x
  2. Step 2: Convert to fraction form
    610,478.50/911,271.56 = 565,453.64/x
  3. Step 3: Cross multiply
    610,478.50x = 911,271.56 × 565,453.64
  4. Step 4: Simplify right side
    610,478.50x = 515,281,820,630.48
  5. Step 5: Solve for x
    x = 515,281,820,630.48/610,478.50
  6. Step 6: Final answer
    x = 844,062.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.