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Finding the Fourth Proportional to 438,447.80, 657,671.70 and 296,730.20

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Solution

The fourth proportional to 438,447.80, 657,671.70 and 296,730.20 is: 445,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,447.80 : 657,671.70 = 296,730.20 : x
  2. Step 2: Convert to fraction form
    438,447.80/657,671.70 = 296,730.20/x
  3. Step 3: Cross multiply
    438,447.80x = 657,671.70 × 296,730.20
  4. Step 4: Simplify right side
    438,447.80x = 195,151,055,075.34
  5. Step 5: Solve for x
    x = 195,151,055,075.34/438,447.80
  6. Step 6: Final answer
    x = 445,095.30

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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.