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Finding the Fourth Proportional to 615,237.40, 922,856.10 and 465,938.20

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Solution

The fourth proportional to 615,237.40, 922,856.10 and 465,938.20 is: 698,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,237.40 : 922,856.10 = 465,938.20 : x
  2. Step 2: Convert to fraction form
    615,237.40/922,856.10 = 465,938.20/x
  3. Step 3: Cross multiply
    615,237.40x = 922,856.10 × 465,938.20
  4. Step 4: Simplify right side
    615,237.40x = 429,993,910,093.02
  5. Step 5: Solve for x
    x = 429,993,910,093.02/615,237.40
  6. Step 6: Final answer
    x = 698,907.30

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Double scale
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Similar ratio
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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.