Home / 649,917.72-896,869.68-359,521.72

Finding the Fourth Proportional to 649,917.72, 896,869.68 and 359,521.72

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Solution

The fourth proportional to 649,917.72, 896,869.68 and 359,521.72 is: 496,130.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,917.72 : 896,869.68 = 359,521.72 : x
  2. Step 2: Convert to fraction form
    649,917.72/896,869.68 = 359,521.72/x
  3. Step 3: Cross multiply
    649,917.72x = 896,869.68 × 359,521.72
  4. Step 4: Simplify right side
    649,917.72x = 322,444,129,969.45
  5. Step 5: Solve for x
    x = 322,444,129,969.45/649,917.72
  6. Step 6: Final answer
    x = 496,130.69

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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.