Home / 688,017.39-949,495.52-382,095.12

Finding the Fourth Proportional to 688,017.39, 949,495.52 and 382,095.12

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Solution

The fourth proportional to 688,017.39, 949,495.52 and 382,095.12 is: 527,308.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,017.39 : 949,495.52 = 382,095.12 : x
  2. Step 2: Convert to fraction form
    688,017.39/949,495.52 = 382,095.12/x
  3. Step 3: Cross multiply
    688,017.39x = 949,495.52 × 382,095.12
  4. Step 4: Simplify right side
    688,017.39x = 362,797,607,020.42
  5. Step 5: Solve for x
    x = 362,797,607,020.42/688,017.39
  6. Step 6: Final answer
    x = 527,308.77

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Double scale
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Similar ratio
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1.5x scale

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.