Home / 807,077.88-1,113,500.88-520,788.24

Finding the Fourth Proportional to 807,077.88, 1,113,500.88 and 520,788.24

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Solution

The fourth proportional to 807,077.88, 1,113,500.88 and 520,788.24 is: 718,515.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,077.88 : 1,113,500.88 = 520,788.24 : x
  2. Step 2: Convert to fraction form
    807,077.88/1,113,500.88 = 520,788.24/x
  3. Step 3: Cross multiply
    807,077.88x = 1,113,500.88 × 520,788.24
  4. Step 4: Simplify right side
    807,077.88x = 579,898,163,533.65
  5. Step 5: Solve for x
    x = 579,898,163,533.65/807,077.88
  6. Step 6: Final answer
    x = 718,515.74

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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.