Home / 688,603.10-1,032,904.65-215,336.30

Finding the Fourth Proportional to 688,603.10, 1,032,904.65 and 215,336.30

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Solution

The fourth proportional to 688,603.10, 1,032,904.65 and 215,336.30 is: 323,004.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,603.10 : 1,032,904.65 = 215,336.30 : x
  2. Step 2: Convert to fraction form
    688,603.10/1,032,904.65 = 215,336.30/x
  3. Step 3: Cross multiply
    688,603.10x = 1,032,904.65 × 215,336.30
  4. Step 4: Simplify right side
    688,603.10x = 222,421,865,583.80
  5. Step 5: Solve for x
    x = 222,421,865,583.80/688,603.10
  6. Step 6: Final answer
    x = 323,004.45

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Similar ratio
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1.5x scale

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.