Home / 649,521.18-896,345.19-359,128.89

Finding the Fourth Proportional to 649,521.18, 896,345.19 and 359,128.89

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Solution

The fourth proportional to 649,521.18, 896,345.19 and 359,128.89 is: 495,601.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,521.18 : 896,345.19 = 359,128.89 : x
  2. Step 2: Convert to fraction form
    649,521.18/896,345.19 = 359,128.89/x
  3. Step 3: Cross multiply
    649,521.18x = 896,345.19 × 359,128.89
  4. Step 4: Simplify right side
    649,521.18x = 321,903,453,141.54
  5. Step 5: Solve for x
    x = 321,903,453,141.54/649,521.18
  6. Step 6: Final answer
    x = 495,601.16

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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.