Home / 942,539.85-1,300,666.08-512,821.68

Finding the Fourth Proportional to 942,539.85, 1,300,666.08 and 512,821.68

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Solution

The fourth proportional to 942,539.85, 1,300,666.08 and 512,821.68 is: 707,672.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,539.85 : 1,300,666.08 = 512,821.68 : x
  2. Step 2: Convert to fraction form
    942,539.85/1,300,666.08 = 512,821.68/x
  3. Step 3: Cross multiply
    942,539.85x = 1,300,666.08 × 512,821.68
  4. Step 4: Simplify right side
    942,539.85x = 667,009,764,264.61
  5. Step 5: Solve for x
    x = 667,009,764,264.61/942,539.85
  6. Step 6: Final answer
    x = 707,672.75

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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.