Home / 688,033.80-1,031,646.78-208,117.20

Finding the Fourth Proportional to 688,033.80, 1,031,646.78 and 208,117.20

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Solution

The fourth proportional to 688,033.80, 1,031,646.78 and 208,117.20 is: 312,053.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,033.80 : 1,031,646.78 = 208,117.20 : x
  2. Step 2: Convert to fraction form
    688,033.80/1,031,646.78 = 208,117.20/x
  3. Step 3: Cross multiply
    688,033.80x = 1,031,646.78 × 208,117.20
  4. Step 4: Simplify right side
    688,033.80x = 214,703,439,242.62
  5. Step 5: Solve for x
    x = 214,703,439,242.62/688,033.80
  6. Step 6: Final answer
    x = 312,053.62

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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.