Home / 765,628.46-1,148,547.78-260,053.70

Finding the Fourth Proportional to 765,628.46, 1,148,547.78 and 260,053.70

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Solution

The fourth proportional to 765,628.46, 1,148,547.78 and 260,053.70 is: 390,116.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,628.46 : 1,148,547.78 = 260,053.70 : x
  2. Step 2: Convert to fraction form
    765,628.46/1,148,547.78 = 260,053.70/x
  3. Step 3: Cross multiply
    765,628.46x = 1,148,547.78 × 260,053.70
  4. Step 4: Simplify right side
    765,628.46x = 298,684,102,687.16
  5. Step 5: Solve for x
    x = 298,684,102,687.16/765,628.46
  6. Step 6: Final answer
    x = 390,116.25

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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.