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Finding the Fourth Proportional to 442,362.60, 662,669.10 and 410,869.80

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Solution

The fourth proportional to 442,362.60, 662,669.10 and 410,869.80 is: 615,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,362.60 : 662,669.10 = 410,869.80 : x
  2. Step 2: Convert to fraction form
    442,362.60/662,669.10 = 410,869.80/x
  3. Step 3: Cross multiply
    442,362.60x = 662,669.10 × 410,869.80
  4. Step 4: Simplify right side
    442,362.60x = 272,270,720,583.18
  5. Step 5: Solve for x
    x = 272,270,720,583.18/442,362.60
  6. Step 6: Final answer
    x = 615,492.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.