Home / 1,520,688.30-2,281,032.45-398,870.70

Finding the Fourth Proportional to 1,520,688.30, 2,281,032.45 and 398,870.70

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Solution

The fourth proportional to 1,520,688.30, 2,281,032.45 and 398,870.70 is: 598,306.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,688.30 : 2,281,032.45 = 398,870.70 : x
  2. Step 2: Convert to fraction form
    1,520,688.30/2,281,032.45 = 398,870.70/x
  3. Step 3: Cross multiply
    1,520,688.30x = 2,281,032.45 × 398,870.70
  4. Step 4: Simplify right side
    1,520,688.30x = 909,837,010,054.22
  5. Step 5: Solve for x
    x = 909,837,010,054.22/1,520,688.30
  6. Step 6: Final answer
    x = 598,306.05

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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.