Home / 1,336,987.02-2,005,265.61-390,135.90

Finding the Fourth Proportional to 1,336,987.02, 2,005,265.61 and 390,135.90

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Solution

The fourth proportional to 1,336,987.02, 2,005,265.61 and 390,135.90 is: 585,141.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,987.02 : 2,005,265.61 = 390,135.90 : x
  2. Step 2: Convert to fraction form
    1,336,987.02/2,005,265.61 = 390,135.90/x
  3. Step 3: Cross multiply
    1,336,987.02x = 2,005,265.61 × 390,135.90
  4. Step 4: Simplify right side
    1,336,987.02x = 782,326,103,496.40
  5. Step 5: Solve for x
    x = 782,326,103,496.40/1,336,987.02
  6. Step 6: Final answer
    x = 585,141.14

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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.