Home / 920,914.71-1,381,304.58-290,008.95

Finding the Fourth Proportional to 920,914.71, 1,381,304.58 and 290,008.95

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Solution

The fourth proportional to 920,914.71, 1,381,304.58 and 290,008.95 is: 434,992.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,914.71 : 1,381,304.58 = 290,008.95 : x
  2. Step 2: Convert to fraction form
    920,914.71/1,381,304.58 = 290,008.95/x
  3. Step 3: Cross multiply
    920,914.71x = 1,381,304.58 × 290,008.95
  4. Step 4: Simplify right side
    920,914.71x = 400,590,690,875.99
  5. Step 5: Solve for x
    x = 400,590,690,875.99/920,914.71
  6. Step 6: Final answer
    x = 434,992.17

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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.