Home / 492,641.04-679,852.24-288,643.20

Finding the Fourth Proportional to 492,641.04, 679,852.24 and 288,643.20

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Solution

The fourth proportional to 492,641.04, 679,852.24 and 288,643.20 is: 398,332.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,641.04 : 679,852.24 = 288,643.20 : x
  2. Step 2: Convert to fraction form
    492,641.04/679,852.24 = 288,643.20/x
  3. Step 3: Cross multiply
    492,641.04x = 679,852.24 × 288,643.20
  4. Step 4: Simplify right side
    492,641.04x = 196,234,726,080.77
  5. Step 5: Solve for x
    x = 196,234,726,080.77/492,641.04
  6. Step 6: Final answer
    x = 398,332.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.