Home / 912,399.60-1,368,599.40-406,959.60

Finding the Fourth Proportional to 912,399.60, 1,368,599.40 and 406,959.60

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Solution

The fourth proportional to 912,399.60, 1,368,599.40 and 406,959.60 is: 610,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,399.60 : 1,368,599.40 = 406,959.60 : x
  2. Step 2: Convert to fraction form
    912,399.60/1,368,599.40 = 406,959.60/x
  3. Step 3: Cross multiply
    912,399.60x = 1,368,599.40 × 406,959.60
  4. Step 4: Simplify right side
    912,399.60x = 556,964,664,384.24
  5. Step 5: Solve for x
    x = 556,964,664,384.24/912,399.60
  6. Step 6: Final answer
    x = 610,439.40

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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.