Home / 1,124,188.50-1,686,304.60-413,850.90

Finding the Fourth Proportional to 1,124,188.50, 1,686,304.60 and 413,850.90

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Solution

The fourth proportional to 1,124,188.50, 1,686,304.60 and 413,850.90 is: 620,784.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,188.50 : 1,686,304.60 = 413,850.90 : x
  2. Step 2: Convert to fraction form
    1,124,188.50/1,686,304.60 = 413,850.90/x
  3. Step 3: Cross multiply
    1,124,188.50x = 1,686,304.60 × 413,850.90
  4. Step 4: Simplify right side
    1,124,188.50x = 697,878,676,384.14
  5. Step 5: Solve for x
    x = 697,878,676,384.14/1,124,188.50
  6. Step 6: Final answer
    x = 620,784.39

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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.