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Finding the Fourth Proportional to 868,658.40, 1,302,922.80 and 363,088.80

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Solution

The fourth proportional to 868,658.40, 1,302,922.80 and 363,088.80 is: 544,606.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,658.40 : 1,302,922.80 = 363,088.80 : x
  2. Step 2: Convert to fraction form
    868,658.40/1,302,922.80 = 363,088.80/x
  3. Step 3: Cross multiply
    868,658.40x = 1,302,922.80 × 363,088.80
  4. Step 4: Simplify right side
    868,658.40x = 473,076,675,944.64
  5. Step 5: Solve for x
    x = 473,076,675,944.64/868,658.40
  6. Step 6: Final answer
    x = 544,606.11

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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.