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Finding the Fourth Proportional to 656,576.04, 906,075.18 and 354,770.04

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Solution

The fourth proportional to 656,576.04, 906,075.18 and 354,770.04 is: 489,582.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,576.04 : 906,075.18 = 354,770.04 : x
  2. Step 2: Convert to fraction form
    656,576.04/906,075.18 = 354,770.04/x
  3. Step 3: Cross multiply
    656,576.04x = 906,075.18 × 354,770.04
  4. Step 4: Simplify right side
    656,576.04x = 321,448,327,851.61
  5. Step 5: Solve for x
    x = 321,448,327,851.61/656,576.04
  6. Step 6: Final answer
    x = 489,582.79

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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.