Home / 739,329.60-1,108,994.40-290,071.20

Finding the Fourth Proportional to 739,329.60, 1,108,994.40 and 290,071.20

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Solution

The fourth proportional to 739,329.60, 1,108,994.40 and 290,071.20 is: 435,106.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,329.60 : 1,108,994.40 = 290,071.20 : x
  2. Step 2: Convert to fraction form
    739,329.60/1,108,994.40 = 290,071.20/x
  3. Step 3: Cross multiply
    739,329.60x = 1,108,994.40 × 290,071.20
  4. Step 4: Simplify right side
    739,329.60x = 321,687,336,401.28
  5. Step 5: Solve for x
    x = 321,687,336,401.28/739,329.60
  6. Step 6: Final answer
    x = 435,106.80

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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.