Home / 942,007.95-1,299,958.72-512,278.86

Finding the Fourth Proportional to 942,007.95, 1,299,958.72 and 512,278.86

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Solution

The fourth proportional to 942,007.95, 1,299,958.72 and 512,278.86 is: 706,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,007.95 : 1,299,958.72 = 512,278.86 : x
  2. Step 2: Convert to fraction form
    942,007.95/1,299,958.72 = 512,278.86/x
  3. Step 3: Cross multiply
    942,007.95x = 1,299,958.72 × 512,278.86
  4. Step 4: Simplify right side
    942,007.95x = 665,941,371,128.66
  5. Step 5: Solve for x
    x = 665,941,371,128.66/942,007.95
  6. Step 6: Final answer
    x = 706,938.16

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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.