Home / 900,226.80-1,242,465.75-518,474.61

Finding the Fourth Proportional to 900,226.80, 1,242,465.75 and 518,474.61

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Solution

The fourth proportional to 900,226.80, 1,242,465.75 and 518,474.61 is: 715,582.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,226.80 : 1,242,465.75 = 518,474.61 : x
  2. Step 2: Convert to fraction form
    900,226.80/1,242,465.75 = 518,474.61/x
  3. Step 3: Cross multiply
    900,226.80x = 1,242,465.75 × 518,474.61
  4. Step 4: Simplify right side
    900,226.80x = 644,186,945,169.61
  5. Step 5: Solve for x
    x = 644,186,945,169.61/900,226.80
  6. Step 6: Final answer
    x = 715,582.95

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1.5x scale

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.