Home / 1,290,004.10-1,935,006.15-817,223.30

Finding the Fourth Proportional to 1,290,004.10, 1,935,006.15 and 817,223.30

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Solution

The fourth proportional to 1,290,004.10, 1,935,006.15 and 817,223.30 is: 1,225,834.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,004.10 : 1,935,006.15 = 817,223.30 : x
  2. Step 2: Convert to fraction form
    1,290,004.10/1,935,006.15 = 817,223.30/x
  3. Step 3: Cross multiply
    1,290,004.10x = 1,935,006.15 × 817,223.30
  4. Step 4: Simplify right side
    1,290,004.10x = 1,581,332,111,423.30
  5. Step 5: Solve for x
    x = 1,581,332,111,423.30/1,290,004.10
  6. Step 6: Final answer
    x = 1,225,834.95

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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.