Home / 1,500,061.50-2,070,069.03-811,718.28

Finding the Fourth Proportional to 1,500,061.50, 2,070,069.03 and 811,718.28

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Solution

The fourth proportional to 1,500,061.50, 2,070,069.03 and 811,718.28 is: 1,120,162.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,061.50 : 2,070,069.03 = 811,718.28 : x
  2. Step 2: Convert to fraction form
    1,500,061.50/2,070,069.03 = 811,718.28/x
  3. Step 3: Cross multiply
    1,500,061.50x = 2,070,069.03 × 811,718.28
  4. Step 4: Simplify right side
    1,500,061.50x = 1,680,312,872,512.87
  5. Step 5: Solve for x
    x = 1,680,312,872,512.87/1,500,061.50
  6. Step 6: Final answer
    x = 1,120,162.66

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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.