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Finding the Fourth Proportional to 545,852.16, 818,926.47 and 309,360.92

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Solution

The fourth proportional to 545,852.16, 818,926.47 and 309,360.92 is: 464,125.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,852.16 : 818,926.47 = 309,360.92 : x
  2. Step 2: Convert to fraction form
    545,852.16/818,926.47 = 309,360.92/x
  3. Step 3: Cross multiply
    545,852.16x = 818,926.47 × 309,360.92
  4. Step 4: Simplify right side
    545,852.16x = 253,343,842,076.92
  5. Step 5: Solve for x
    x = 253,343,842,076.92/545,852.16
  6. Step 6: Final answer
    x = 464,125.38

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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.