Home / 912,643.20-1,368,964.80-238,723.20

Finding the Fourth Proportional to 912,643.20, 1,368,964.80 and 238,723.20

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Solution

The fourth proportional to 912,643.20, 1,368,964.80 and 238,723.20 is: 358,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,643.20 : 1,368,964.80 = 238,723.20 : x
  2. Step 2: Convert to fraction form
    912,643.20/1,368,964.80 = 238,723.20/x
  3. Step 3: Cross multiply
    912,643.20x = 1,368,964.80 × 238,723.20
  4. Step 4: Simplify right side
    912,643.20x = 326,803,657,743.36
  5. Step 5: Solve for x
    x = 326,803,657,743.36/912,643.20
  6. Step 6: Final answer
    x = 358,084.80

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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.