Home / 715,854.77-1,074,560.18-289,683.92

Finding the Fourth Proportional to 715,854.77, 1,074,560.18 and 289,683.92

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Solution

The fourth proportional to 715,854.77, 1,074,560.18 and 289,683.92 is: 434,840.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,854.77 : 1,074,560.18 = 289,683.92 : x
  2. Step 2: Convert to fraction form
    715,854.77/1,074,560.18 = 289,683.92/x
  3. Step 3: Cross multiply
    715,854.77x = 1,074,560.18 × 289,683.92
  4. Step 4: Simplify right side
    715,854.77x = 311,282,803,769.89
  5. Step 5: Solve for x
    x = 311,282,803,769.89/715,854.77
  6. Step 6: Final answer
    x = 434,840.72

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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.