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Finding the Fourth Proportional to 623,101.92, 859,926 and 347,478.48

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Solution

The fourth proportional to 623,101.92, 859,926 and 347,478.48 is: 479,545.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,101.92 : 859,926 = 347,478.48 : x
  2. Step 2: Convert to fraction form
    623,101.92/859,926 = 347,478.48/x
  3. Step 3: Cross multiply
    623,101.92x = 859,926 × 347,478.48
  4. Step 4: Simplify right side
    623,101.92x = 298,805,779,392.48
  5. Step 5: Solve for x
    x = 298,805,779,392.48/623,101.92
  6. Step 6: Final answer
    x = 479,545.59

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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.