Home / 1,564,542.70-2,158,698.90-885,479.20

Finding the Fourth Proportional to 1,564,542.70, 2,158,698.90 and 885,479.20

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Solution

The fourth proportional to 1,564,542.70, 2,158,698.90 and 885,479.20 is: 1,221,751.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564,542.70 : 2,158,698.90 = 885,479.20 : x
  2. Step 2: Convert to fraction form
    1,564,542.70/2,158,698.90 = 885,479.20/x
  3. Step 3: Cross multiply
    1,564,542.70x = 2,158,698.90 × 885,479.20
  4. Step 4: Simplify right side
    1,564,542.70x = 1,911,482,975,012.88
  5. Step 5: Solve for x
    x = 1,911,482,975,012.88/1,564,542.70
  6. Step 6: Final answer
    x = 1,221,751.87

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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.