Home / 1,315,007.10-1,972,510.65-515,877.30

Finding the Fourth Proportional to 1,315,007.10, 1,972,510.65 and 515,877.30

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Solution

The fourth proportional to 1,315,007.10, 1,972,510.65 and 515,877.30 is: 773,815.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,007.10 : 1,972,510.65 = 515,877.30 : x
  2. Step 2: Convert to fraction form
    1,315,007.10/1,972,510.65 = 515,877.30/x
  3. Step 3: Cross multiply
    1,315,007.10x = 1,972,510.65 × 515,877.30
  4. Step 4: Simplify right side
    1,315,007.10x = 1,017,573,468,343.24
  5. Step 5: Solve for x
    x = 1,017,573,468,343.24/1,315,007.10
  6. Step 6: Final answer
    x = 773,815.95

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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.