Home / 700,065.60-1,050,616.80-279,643.20

Finding the Fourth Proportional to 700,065.60, 1,050,616.80 and 279,643.20

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Solution

The fourth proportional to 700,065.60, 1,050,616.80 and 279,643.20 is: 419,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,065.60 : 1,050,616.80 = 279,643.20 : x
  2. Step 2: Convert to fraction form
    700,065.60/1,050,616.80 = 279,643.20/x
  3. Step 3: Cross multiply
    700,065.60x = 1,050,616.80 × 279,643.20
  4. Step 4: Simplify right side
    700,065.60x = 293,797,843,925.76
  5. Step 5: Solve for x
    x = 293,797,843,925.76/700,065.60
  6. Step 6: Final answer
    x = 419,671.88

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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.