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Finding the Fourth Proportional to 476,853.60, 715,280.40 and 424,322.40

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Solution

The fourth proportional to 476,853.60, 715,280.40 and 424,322.40 is: 636,483.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,853.60 : 715,280.40 = 424,322.40 : x
  2. Step 2: Convert to fraction form
    476,853.60/715,280.40 = 424,322.40/x
  3. Step 3: Cross multiply
    476,853.60x = 715,280.40 × 424,322.40
  4. Step 4: Simplify right side
    476,853.60x = 303,509,496,000.96
  5. Step 5: Solve for x
    x = 303,509,496,000.96/476,853.60
  6. Step 6: Final answer
    x = 636,483.60

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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.