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Finding the Fourth Proportional to 886,925.90, 1,330,561.65 and 354,356.30

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Solution

The fourth proportional to 886,925.90, 1,330,561.65 and 354,356.30 is: 531,603.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,925.90 : 1,330,561.65 = 354,356.30 : x
  2. Step 2: Convert to fraction form
    886,925.90/1,330,561.65 = 354,356.30/x
  3. Step 3: Cross multiply
    886,925.90x = 1,330,561.65 × 354,356.30
  4. Step 4: Simplify right side
    886,925.90x = 471,492,903,215.90
  5. Step 5: Solve for x
    x = 471,492,903,215.90/886,925.90
  6. Step 6: Final answer
    x = 531,603.49

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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.