Home / 1,689,486.16-2,535,061.88-790,988.72

Finding the Fourth Proportional to 1,689,486.16, 2,535,061.88 and 790,988.72

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Solution

The fourth proportional to 1,689,486.16, 2,535,061.88 and 790,988.72 is: 1,186,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,486.16 : 2,535,061.88 = 790,988.72 : x
  2. Step 2: Convert to fraction form
    1,689,486.16/2,535,061.88 = 790,988.72/x
  3. Step 3: Cross multiply
    1,689,486.16x = 2,535,061.88 × 790,988.72
  4. Step 4: Simplify right side
    1,689,486.16x = 2,005,205,351,581.99
  5. Step 5: Solve for x
    x = 2,005,205,351,581.99/1,689,486.16
  6. Step 6: Final answer
    x = 1,186,872.91

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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.