Home / 917,502.23-1,376,253.35-286,470.11

Finding the Fourth Proportional to 917,502.23, 1,376,253.35 and 286,470.11

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Solution

The fourth proportional to 917,502.23, 1,376,253.35 and 286,470.11 is: 429,705.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,502.23 : 1,376,253.35 = 286,470.11 : x
  2. Step 2: Convert to fraction form
    917,502.23/1,376,253.35 = 286,470.11/x
  3. Step 3: Cross multiply
    917,502.23x = 1,376,253.35 × 286,470.11
  4. Step 4: Simplify right side
    917,502.23x = 394,255,448,562.37
  5. Step 5: Solve for x
    x = 394,255,448,562.37/917,502.23
  6. Step 6: Final answer
    x = 429,705.17

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.