Home / 788,541.48-1,185,281.22-520,392.78

Finding the Fourth Proportional to 788,541.48, 1,185,281.22 and 520,392.78

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Solution

The fourth proportional to 788,541.48, 1,185,281.22 and 520,392.78 is: 782,218.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,541.48 : 1,185,281.22 = 520,392.78 : x
  2. Step 2: Convert to fraction form
    788,541.48/1,185,281.22 = 520,392.78/x
  3. Step 3: Cross multiply
    788,541.48x = 1,185,281.22 × 520,392.78
  4. Step 4: Simplify right side
    788,541.48x = 616,811,789,157.59
  5. Step 5: Solve for x
    x = 616,811,789,157.59/788,541.48
  6. Step 6: Final answer
    x = 782,218.57

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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.