Home / 1,322,931.18-1,984,407.71-424,380.36

Finding the Fourth Proportional to 1,322,931.18, 1,984,407.71 and 424,380.36

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Solution

The fourth proportional to 1,322,931.18, 1,984,407.71 and 424,380.36 is: 636,574.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,931.18 : 1,984,407.71 = 424,380.36 : x
  2. Step 2: Convert to fraction form
    1,322,931.18/1,984,407.71 = 424,380.36/x
  3. Step 3: Cross multiply
    1,322,931.18x = 1,984,407.71 × 424,380.36
  4. Step 4: Simplify right side
    1,322,931.18x = 842,143,658,356.58
  5. Step 5: Solve for x
    x = 842,143,658,356.58/1,322,931.18
  6. Step 6: Final answer
    x = 636,574.05

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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.