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Finding the Fourth Proportional to 887,448.40, 1,330,265.40 and 437,477.20

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Solution

The fourth proportional to 887,448.40, 1,330,265.40 and 437,477.20 is: 655,768.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,448.40 : 1,330,265.40 = 437,477.20 : x
  2. Step 2: Convert to fraction form
    887,448.40/1,330,265.40 = 437,477.20/x
  3. Step 3: Cross multiply
    887,448.40x = 1,330,265.40 × 437,477.20
  4. Step 4: Simplify right side
    887,448.40x = 581,960,782,448.88
  5. Step 5: Solve for x
    x = 581,960,782,448.88/887,448.40
  6. Step 6: Final answer
    x = 655,768.59

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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.