Home / 917,516.70-1,376,275.23-286,484.58

Finding the Fourth Proportional to 917,516.70, 1,376,275.23 and 286,484.58

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Solution

The fourth proportional to 917,516.70, 1,376,275.23 and 286,484.58 is: 429,726.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,516.70 : 1,376,275.23 = 286,484.58 : x
  2. Step 2: Convert to fraction form
    917,516.70/1,376,275.23 = 286,484.58/x
  3. Step 3: Cross multiply
    917,516.70x = 1,376,275.23 × 286,484.58
  4. Step 4: Simplify right side
    917,516.70x = 394,281,631,230.95
  5. Step 5: Solve for x
    x = 394,281,631,230.95/917,516.70
  6. Step 6: Final answer
    x = 429,726.93

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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.