Home / 942,719.64-1,300,950.68-512,999.64

Finding the Fourth Proportional to 942,719.64, 1,300,950.68 and 512,999.64

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Solution

The fourth proportional to 942,719.64, 1,300,950.68 and 512,999.64 is: 707,938.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,719.64 : 1,300,950.68 = 512,999.64 : x
  2. Step 2: Convert to fraction form
    942,719.64/1,300,950.68 = 512,999.64/x
  3. Step 3: Cross multiply
    942,719.64x = 1,300,950.68 × 512,999.64
  4. Step 4: Simplify right side
    942,719.64x = 667,387,230,497.76
  5. Step 5: Solve for x
    x = 667,387,230,497.76/942,719.64
  6. Step 6: Final answer
    x = 707,938.18

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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.