Home / 710,339.60-1,066,114.20-289,917.20

Finding the Fourth Proportional to 710,339.60, 1,066,114.20 and 289,917.20

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Solution

The fourth proportional to 710,339.60, 1,066,114.20 and 289,917.20 is: 435,122.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,339.60 : 1,066,114.20 = 289,917.20 : x
  2. Step 2: Convert to fraction form
    710,339.60/1,066,114.20 = 289,917.20/x
  3. Step 3: Cross multiply
    710,339.60x = 1,066,114.20 × 289,917.20
  4. Step 4: Simplify right side
    710,339.60x = 309,084,843,744.24
  5. Step 5: Solve for x
    x = 309,084,843,744.24/710,339.60
  6. Step 6: Final answer
    x = 435,122.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.