Home / 757,057.65-1,044,475.71-485,275.40

Finding the Fourth Proportional to 757,057.65, 1,044,475.71 and 485,275.40

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Solution

The fourth proportional to 757,057.65, 1,044,475.71 and 485,275.40 is: 669,510.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,057.65 : 1,044,475.71 = 485,275.40 : x
  2. Step 2: Convert to fraction form
    757,057.65/1,044,475.71 = 485,275.40/x
  3. Step 3: Cross multiply
    757,057.65x = 1,044,475.71 × 485,275.40
  4. Step 4: Simplify right side
    757,057.65x = 506,858,367,960.53
  5. Step 5: Solve for x
    x = 506,858,367,960.53/757,057.65
  6. Step 6: Final answer
    x = 669,510.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.