Home / 772,826.80-1,159,240.20-520,884.40

Finding the Fourth Proportional to 772,826.80, 1,159,240.20 and 520,884.40

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Solution

The fourth proportional to 772,826.80, 1,159,240.20 and 520,884.40 is: 781,326.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,826.80 : 1,159,240.20 = 520,884.40 : x
  2. Step 2: Convert to fraction form
    772,826.80/1,159,240.20 = 520,884.40/x
  3. Step 3: Cross multiply
    772,826.80x = 1,159,240.20 × 520,884.40
  4. Step 4: Simplify right side
    772,826.80x = 603,830,136,032.88
  5. Step 5: Solve for x
    x = 603,830,136,032.88/772,826.80
  6. Step 6: Final answer
    x = 781,326.60

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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.