Home / 637,897.40-956,846.10-438,831.80

Finding the Fourth Proportional to 637,897.40, 956,846.10 and 438,831.80

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Solution

The fourth proportional to 637,897.40, 956,846.10 and 438,831.80 is: 658,247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,897.40 : 956,846.10 = 438,831.80 : x
  2. Step 2: Convert to fraction form
    637,897.40/956,846.10 = 438,831.80/x
  3. Step 3: Cross multiply
    637,897.40x = 956,846.10 × 438,831.80
  4. Step 4: Simplify right side
    637,897.40x = 419,894,496,385.98
  5. Step 5: Solve for x
    x = 419,894,496,385.98/637,897.40
  6. Step 6: Final answer
    x = 658,247.70

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Similar ratio
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1.5x scale

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.