Home / 942,718.88-1,300,979.43-513,026.72

Finding the Fourth Proportional to 942,718.88, 1,300,979.43 and 513,026.72

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Solution

The fourth proportional to 942,718.88, 1,300,979.43 and 513,026.72 is: 707,991.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,718.88 : 1,300,979.43 = 513,026.72 : x
  2. Step 2: Convert to fraction form
    942,718.88/1,300,979.43 = 513,026.72/x
  3. Step 3: Cross multiply
    942,718.88x = 1,300,979.43 × 513,026.72
  4. Step 4: Simplify right side
    942,718.88x = 667,437,209,760.37
  5. Step 5: Solve for x
    x = 667,437,209,760.37/942,718.88
  6. Step 6: Final answer
    x = 707,991.77

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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.