Home / 920,766.08-1,270,576.32-512,837.12

Finding the Fourth Proportional to 920,766.08, 1,270,576.32 and 512,837.12

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Solution

The fourth proportional to 920,766.08, 1,270,576.32 and 512,837.12 is: 707,670.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,766.08 : 1,270,576.32 = 512,837.12 : x
  2. Step 2: Convert to fraction form
    920,766.08/1,270,576.32 = 512,837.12/x
  3. Step 3: Cross multiply
    920,766.08x = 1,270,576.32 × 512,837.12
  4. Step 4: Simplify right side
    920,766.08x = 651,598,700,689.00
  5. Step 5: Solve for x
    x = 651,598,700,689.00/920,766.08
  6. Step 6: Final answer
    x = 707,670.18

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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.