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Finding the Fourth Proportional to 637,194.67, 879,328.91 and 350,712.72

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Solution

The fourth proportional to 637,194.67, 879,328.91 and 350,712.72 is: 483,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,194.67 : 879,328.91 = 350,712.72 : x
  2. Step 2: Convert to fraction form
    637,194.67/879,328.91 = 350,712.72/x
  3. Step 3: Cross multiply
    637,194.67x = 879,328.91 × 350,712.72
  4. Step 4: Simplify right side
    637,194.67x = 308,391,834,677.52
  5. Step 5: Solve for x
    x = 308,391,834,677.52/637,194.67
  6. Step 6: Final answer
    x = 483,983.70

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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.