Home / 1,337,037.60-2,005,341.20-390,186.40

Finding the Fourth Proportional to 1,337,037.60, 2,005,341.20 and 390,186.40

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Solution

The fourth proportional to 1,337,037.60, 2,005,341.20 and 390,186.40 is: 585,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337,037.60 : 2,005,341.20 = 390,186.40 : x
  2. Step 2: Convert to fraction form
    1,337,037.60/2,005,341.20 = 390,186.40/x
  3. Step 3: Cross multiply
    1,337,037.60x = 2,005,341.20 × 390,186.40
  4. Step 4: Simplify right side
    1,337,037.60x = 782,456,863,599.68
  5. Step 5: Solve for x
    x = 782,456,863,599.68/1,337,037.60
  6. Step 6: Final answer
    x = 585,216.80

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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.