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Finding the Fourth Proportional to 630,541.98, 870,167.10 and 358,648.98

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Solution

The fourth proportional to 630,541.98, 870,167.10 and 358,648.98 is: 494,946.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,541.98 : 870,167.10 = 358,648.98 : x
  2. Step 2: Convert to fraction form
    630,541.98/870,167.10 = 358,648.98/x
  3. Step 3: Cross multiply
    630,541.98x = 870,167.10 × 358,648.98
  4. Step 4: Simplify right side
    630,541.98x = 312,084,542,844.56
  5. Step 5: Solve for x
    x = 312,084,542,844.56/630,541.98
  6. Step 6: Final answer
    x = 494,946.49

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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.