Home / 510,438.03-766,130.70-257,895.90

Finding the Fourth Proportional to 510,438.03, 766,130.70 and 257,895.90

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Solution

The fourth proportional to 510,438.03, 766,130.70 and 257,895.90 is: 387,083.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,438.03 : 766,130.70 = 257,895.90 : x
  2. Step 2: Convert to fraction form
    510,438.03/766,130.70 = 257,895.90/x
  3. Step 3: Cross multiply
    510,438.03x = 766,130.70 × 257,895.90
  4. Step 4: Simplify right side
    510,438.03x = 197,581,966,394.13
  5. Step 5: Solve for x
    x = 197,581,966,394.13/510,438.03
  6. Step 6: Final answer
    x = 387,083.16

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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.