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Finding the Fourth Proportional to 370,820.30, 520,329.40 and 370,820.30

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Solution

The fourth proportional to 370,820.30, 520,329.40 and 370,820.30 is: 520,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,820.30 : 520,329.40 = 370,820.30 : x
  2. Step 2: Convert to fraction form
    370,820.30/520,329.40 = 370,820.30/x
  3. Step 3: Cross multiply
    370,820.30x = 520,329.40 × 370,820.30
  4. Step 4: Simplify right side
    370,820.30x = 192,948,704,206.82
  5. Step 5: Solve for x
    x = 192,948,704,206.82/370,820.30
  6. Step 6: Final answer
    x = 520,329.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.