Home / 1,243,807.20-1,865,710.80-402,358.95

Finding the Fourth Proportional to 1,243,807.20, 1,865,710.80 and 402,358.95

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Solution

The fourth proportional to 1,243,807.20, 1,865,710.80 and 402,358.95 is: 603,538.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,807.20 : 1,865,710.80 = 402,358.95 : x
  2. Step 2: Convert to fraction form
    1,243,807.20/1,865,710.80 = 402,358.95/x
  3. Step 3: Cross multiply
    1,243,807.20x = 1,865,710.80 × 402,358.95
  4. Step 4: Simplify right side
    1,243,807.20x = 750,685,438,491.66
  5. Step 5: Solve for x
    x = 750,685,438,491.66/1,243,807.20
  6. Step 6: Final answer
    x = 603,538.43

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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.