Home / 710,426.12-1,065,639.26-289,734.92

Finding the Fourth Proportional to 710,426.12, 1,065,639.26 and 289,734.92

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Solution

The fourth proportional to 710,426.12, 1,065,639.26 and 289,734.92 is: 434,602.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,426.12 : 1,065,639.26 = 289,734.92 : x
  2. Step 2: Convert to fraction form
    710,426.12/1,065,639.26 = 289,734.92/x
  3. Step 3: Cross multiply
    710,426.12x = 1,065,639.26 × 289,734.92
  4. Step 4: Simplify right side
    710,426.12x = 308,752,905,744.96
  5. Step 5: Solve for x
    x = 308,752,905,744.96/710,426.12
  6. Step 6: Final answer
    x = 434,602.41

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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.