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Finding the Fourth Proportional to 630,962.88, 870,724.28 and 344,482.96

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Solution

The fourth proportional to 630,962.88, 870,724.28 and 344,482.96 is: 475,384.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,962.88 : 870,724.28 = 344,482.96 : x
  2. Step 2: Convert to fraction form
    630,962.88/870,724.28 = 344,482.96/x
  3. Step 3: Cross multiply
    630,962.88x = 870,724.28 × 344,482.96
  4. Step 4: Simplify right side
    630,962.88x = 299,949,677,318.27
  5. Step 5: Solve for x
    x = 299,949,677,318.27/630,962.88
  6. Step 6: Final answer
    x = 475,384.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.