Home / 1,121,225.58-1,680,838.38-411,088.50

Finding the Fourth Proportional to 1,121,225.58, 1,680,838.38 and 411,088.50

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Solution

The fourth proportional to 1,121,225.58, 1,680,838.38 and 411,088.50 is: 616,266.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,225.58 : 1,680,838.38 = 411,088.50 : x
  2. Step 2: Convert to fraction form
    1,121,225.58/1,680,838.38 = 411,088.50/x
  3. Step 3: Cross multiply
    1,121,225.58x = 1,680,838.38 × 411,088.50
  4. Step 4: Simplify right side
    1,121,225.58x = 690,973,328,376.63
  5. Step 5: Solve for x
    x = 690,973,328,376.63/1,121,225.58
  6. Step 6: Final answer
    x = 616,266.11

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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.