Home / 1,340,707.20-2,011,060.80-442,287.60

Finding the Fourth Proportional to 1,340,707.20, 2,011,060.80 and 442,287.60

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Solution

The fourth proportional to 1,340,707.20, 2,011,060.80 and 442,287.60 is: 663,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,707.20 : 2,011,060.80 = 442,287.60 : x
  2. Step 2: Convert to fraction form
    1,340,707.20/2,011,060.80 = 442,287.60/x
  3. Step 3: Cross multiply
    1,340,707.20x = 2,011,060.80 × 442,287.60
  4. Step 4: Simplify right side
    1,340,707.20x = 889,467,254,686.08
  5. Step 5: Solve for x
    x = 889,467,254,686.08/1,340,707.20
  6. Step 6: Final answer
    x = 663,431.40

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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.