Home / 918,441.28-1,267,448-510,530.56

Finding the Fourth Proportional to 918,441.28, 1,267,448 and 510,530.56

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Solution

The fourth proportional to 918,441.28, 1,267,448 and 510,530.56 is: 704,531.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,441.28 : 1,267,448 = 510,530.56 : x
  2. Step 2: Convert to fraction form
    918,441.28/1,267,448 = 510,530.56/x
  3. Step 3: Cross multiply
    918,441.28x = 1,267,448 × 510,530.56
  4. Step 4: Simplify right side
    918,441.28x = 647,070,937,210.88
  5. Step 5: Solve for x
    x = 647,070,937,210.88/918,441.28
  6. Step 6: Final answer
    x = 704,531.64

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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.