Home / 427,113.30-640,767.15-249,528.90

Finding the Fourth Proportional to 427,113.30, 640,767.15 and 249,528.90

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Solution

The fourth proportional to 427,113.30, 640,767.15 and 249,528.90 is: 374,350.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,113.30 : 640,767.15 = 249,528.90 : x
  2. Step 2: Convert to fraction form
    427,113.30/640,767.15 = 249,528.90/x
  3. Step 3: Cross multiply
    427,113.30x = 640,767.15 × 249,528.90
  4. Step 4: Simplify right side
    427,113.30x = 159,889,922,095.64
  5. Step 5: Solve for x
    x = 159,889,922,095.64/427,113.30
  6. Step 6: Final answer
    x = 374,350.14

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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.