Home / 942,171.09-1,300,132.08-512,441.98

Finding the Fourth Proportional to 942,171.09, 1,300,132.08 and 512,441.98

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Solution

The fourth proportional to 942,171.09, 1,300,132.08 and 512,441.98 is: 707,135.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,171.09 : 1,300,132.08 = 512,441.98 : x
  2. Step 2: Convert to fraction form
    942,171.09/1,300,132.08 = 512,441.98/x
  3. Step 3: Cross multiply
    942,171.09x = 1,300,132.08 × 512,441.98
  4. Step 4: Simplify right side
    942,171.09x = 666,242,257,336.72
  5. Step 5: Solve for x
    x = 666,242,257,336.72/942,171.09
  6. Step 6: Final answer
    x = 707,135.11

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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.