Home / 942,043.20-1,300,007.37-512,314.11

Finding the Fourth Proportional to 942,043.20, 1,300,007.37 and 512,314.11

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Solution

The fourth proportional to 942,043.20, 1,300,007.37 and 512,314.11 is: 706,986.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,043.20 : 1,300,007.37 = 512,314.11 : x
  2. Step 2: Convert to fraction form
    942,043.20/1,300,007.37 = 512,314.11/x
  3. Step 3: Cross multiply
    942,043.20x = 1,300,007.37 × 512,314.11
  4. Step 4: Simplify right side
    942,043.20x = 666,012,118,754.99
  5. Step 5: Solve for x
    x = 666,012,118,754.99/942,043.20
  6. Step 6: Final answer
    x = 706,986.81

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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.