Home / 948,117.81-1,421,397.59-442,428.73

Finding the Fourth Proportional to 948,117.81, 1,421,397.59 and 442,428.73

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Solution

The fourth proportional to 948,117.81, 1,421,397.59 and 442,428.73 is: 663,279.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,117.81 : 1,421,397.59 = 442,428.73 : x
  2. Step 2: Convert to fraction form
    948,117.81/1,421,397.59 = 442,428.73/x
  3. Step 3: Cross multiply
    948,117.81x = 1,421,397.59 × 442,428.73
  4. Step 4: Simplify right side
    948,117.81x = 628,867,136,531.48
  5. Step 5: Solve for x
    x = 628,867,136,531.48/948,117.81
  6. Step 6: Final answer
    x = 663,279.53

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Double scale
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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.