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Finding the Fourth Proportional to 570,461.92, 786,990.24 and 343,981.60

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Solution

The fourth proportional to 570,461.92, 786,990.24 and 343,981.60 is: 474,545.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,461.92 : 786,990.24 = 343,981.60 : x
  2. Step 2: Convert to fraction form
    570,461.92/786,990.24 = 343,981.60/x
  3. Step 3: Cross multiply
    570,461.92x = 786,990.24 × 343,981.60
  4. Step 4: Simplify right side
    570,461.92x = 270,710,161,939.58
  5. Step 5: Solve for x
    x = 270,710,161,939.58/570,461.92
  6. Step 6: Final answer
    x = 474,545.54

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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.