Home / 765,417.88-1,148,386.32-338,894.97

Finding the Fourth Proportional to 765,417.88, 1,148,386.32 and 338,894.97

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Solution

The fourth proportional to 765,417.88, 1,148,386.32 and 338,894.97 is: 508,457.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,417.88 : 1,148,386.32 = 338,894.97 : x
  2. Step 2: Convert to fraction form
    765,417.88/1,148,386.32 = 338,894.97/x
  3. Step 3: Cross multiply
    765,417.88x = 1,148,386.32 × 338,894.97
  4. Step 4: Simplify right side
    765,417.88x = 389,182,347,464.81
  5. Step 5: Solve for x
    x = 389,182,347,464.81/765,417.88
  6. Step 6: Final answer
    x = 508,457.35

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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.