Home / 487,985.40-731,880.90-235,265.40

Finding the Fourth Proportional to 487,985.40, 731,880.90 and 235,265.40

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Solution

The fourth proportional to 487,985.40, 731,880.90 and 235,265.40 is: 352,851.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,985.40 : 731,880.90 = 235,265.40 : x
  2. Step 2: Convert to fraction form
    487,985.40/731,880.90 = 235,265.40/x
  3. Step 3: Cross multiply
    487,985.40x = 731,880.90 × 235,265.40
  4. Step 4: Simplify right side
    487,985.40x = 172,186,252,690.86
  5. Step 5: Solve for x
    x = 172,186,252,690.86/487,985.40
  6. Step 6: Final answer
    x = 352,851.24

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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.