Home / 749,419.29-1,034,206.79-409,880.25

Finding the Fourth Proportional to 749,419.29, 1,034,206.79 and 409,880.25

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Solution

The fourth proportional to 749,419.29, 1,034,206.79 and 409,880.25 is: 565,639.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,419.29 : 1,034,206.79 = 409,880.25 : x
  2. Step 2: Convert to fraction form
    749,419.29/1,034,206.79 = 409,880.25/x
  3. Step 3: Cross multiply
    749,419.29x = 1,034,206.79 × 409,880.25
  4. Step 4: Simplify right side
    749,419.29x = 423,900,935,587.50
  5. Step 5: Solve for x
    x = 423,900,935,587.50/749,419.29
  6. Step 6: Final answer
    x = 565,639.21

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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.