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Finding the Fourth Proportional to 545,117.76, 751,618.80 and 373,118.64

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Solution

The fourth proportional to 545,117.76, 751,618.80 and 373,118.64 is: 514,463.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,117.76 : 751,618.80 = 373,118.64 : x
  2. Step 2: Convert to fraction form
    545,117.76/751,618.80 = 373,118.64/x
  3. Step 3: Cross multiply
    545,117.76x = 751,618.80 × 373,118.64
  4. Step 4: Simplify right side
    545,117.76x = 280,442,984,454.43
  5. Step 5: Solve for x
    x = 280,442,984,454.43/545,117.76
  6. Step 6: Final answer
    x = 514,463.12

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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.