Home / 1,120,185.90-1,680,084.45-409,848.30

Finding the Fourth Proportional to 1,120,185.90, 1,680,084.45 and 409,848.30

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Solution

The fourth proportional to 1,120,185.90, 1,680,084.45 and 409,848.30 is: 614,701.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,185.90 : 1,680,084.45 = 409,848.30 : x
  2. Step 2: Convert to fraction form
    1,120,185.90/1,680,084.45 = 409,848.30/x
  3. Step 3: Cross multiply
    1,120,185.90x = 1,680,084.45 × 409,848.30
  4. Step 4: Simplify right side
    1,120,185.90x = 688,579,755,688.94
  5. Step 5: Solve for x
    x = 688,579,755,688.94/1,120,185.90
  6. Step 6: Final answer
    x = 614,701.32

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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.