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Finding the Fourth Proportional to 571,675, 788,854.80 and 330,035.53

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Solution

The fourth proportional to 571,675, 788,854.80 and 330,035.53 is: 455,416.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,675 : 788,854.80 = 330,035.53 : x
  2. Step 2: Convert to fraction form
    571,675/788,854.80 = 330,035.53/x
  3. Step 3: Cross multiply
    571,675x = 788,854.80 × 330,035.53
  4. Step 4: Simplify right side
    571,675x = 260,350,112,011.04
  5. Step 5: Solve for x
    x = 260,350,112,011.04/571,675
  6. Step 6: Final answer
    x = 455,416.30

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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.