Home / 638,565.30-881,226.18-352,095.60

Finding the Fourth Proportional to 638,565.30, 881,226.18 and 352,095.60

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Solution

The fourth proportional to 638,565.30, 881,226.18 and 352,095.60 is: 485,895.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,565.30 : 881,226.18 = 352,095.60 : x
  2. Step 2: Convert to fraction form
    638,565.30/881,226.18 = 352,095.60/x
  3. Step 3: Cross multiply
    638,565.30x = 881,226.18 × 352,095.60
  4. Step 4: Simplify right side
    638,565.30x = 310,275,860,582.81
  5. Step 5: Solve for x
    x = 310,275,860,582.81/638,565.30
  6. Step 6: Final answer
    x = 485,895.27

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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.