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Finding the Fourth Proportional to 630,535.14, 870,159.51 and 344,070.96

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Solution

The fourth proportional to 630,535.14, 870,159.51 and 344,070.96 is: 474,829.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,535.14 : 870,159.51 = 344,070.96 : x
  2. Step 2: Convert to fraction form
    630,535.14/870,159.51 = 344,070.96/x
  3. Step 3: Cross multiply
    630,535.14x = 870,159.51 × 344,070.96
  4. Step 4: Simplify right side
    630,535.14x = 299,396,617,958.83
  5. Step 5: Solve for x
    x = 299,396,617,958.83/630,535.14
  6. Step 6: Final answer
    x = 474,829.39

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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.