Home / 674,187.10-1,009,968.45-407,154.40

Finding the Fourth Proportional to 674,187.10, 1,009,968.45 and 407,154.40

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Solution

The fourth proportional to 674,187.10, 1,009,968.45 and 407,154.40 is: 609,939.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,187.10 : 1,009,968.45 = 407,154.40 : x
  2. Step 2: Convert to fraction form
    674,187.10/1,009,968.45 = 407,154.40/x
  3. Step 3: Cross multiply
    674,187.10x = 1,009,968.45 × 407,154.40
  4. Step 4: Simplify right side
    674,187.10x = 411,213,098,278.68
  5. Step 5: Solve for x
    x = 411,213,098,278.68/674,187.10
  6. Step 6: Final answer
    x = 609,939.14

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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.