Home / 866,320.24-1,298,345.47-416,145.43

Finding the Fourth Proportional to 866,320.24, 1,298,345.47 and 416,145.43

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Solution

The fourth proportional to 866,320.24, 1,298,345.47 and 416,145.43 is: 623,672.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,320.24 : 1,298,345.47 = 416,145.43 : x
  2. Step 2: Convert to fraction form
    866,320.24/1,298,345.47 = 416,145.43/x
  3. Step 3: Cross multiply
    866,320.24x = 1,298,345.47 × 416,145.43
  4. Step 4: Simplify right side
    866,320.24x = 540,300,533,901.70
  5. Step 5: Solve for x
    x = 540,300,533,901.70/866,320.24
  6. Step 6: Final answer
    x = 623,672.99

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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.