Home / 989,475.90-1,365,479.37-536,766.90

Finding the Fourth Proportional to 989,475.90, 1,365,479.37 and 536,766.90

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Solution

The fourth proportional to 989,475.90, 1,365,479.37 and 536,766.90 is: 740,739.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,475.90 : 1,365,479.37 = 536,766.90 : x
  2. Step 2: Convert to fraction form
    989,475.90/1,365,479.37 = 536,766.90/x
  3. Step 3: Cross multiply
    989,475.90x = 1,365,479.37 × 536,766.90
  4. Step 4: Simplify right side
    989,475.90x = 732,944,128,448.85
  5. Step 5: Solve for x
    x = 732,944,128,448.85/989,475.90
  6. Step 6: Final answer
    x = 740,739.75

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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.