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Finding the Fourth Proportional to 549,012.80, 757,602.48 and 307,254.56

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Solution

The fourth proportional to 549,012.80, 757,602.48 and 307,254.56 is: 423,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,012.80 : 757,602.48 = 307,254.56 : x
  2. Step 2: Convert to fraction form
    549,012.80/757,602.48 = 307,254.56/x
  3. Step 3: Cross multiply
    549,012.80x = 757,602.48 × 307,254.56
  4. Step 4: Simplify right side
    549,012.80x = 232,776,816,647.31
  5. Step 5: Solve for x
    x = 232,776,816,647.31/549,012.80
  6. Step 6: Final answer
    x = 423,991.60

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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.