Home / 710,340.60-1,066,115.70-289,918.20

Finding the Fourth Proportional to 710,340.60, 1,066,115.70 and 289,918.20

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Solution

The fourth proportional to 710,340.60, 1,066,115.70 and 289,918.20 is: 435,124.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,340.60 : 1,066,115.70 = 289,918.20 : x
  2. Step 2: Convert to fraction form
    710,340.60/1,066,115.70 = 289,918.20/x
  3. Step 3: Cross multiply
    710,340.60x = 1,066,115.70 × 289,918.20
  4. Step 4: Simplify right side
    710,340.60x = 309,086,344,735.74
  5. Step 5: Solve for x
    x = 309,086,344,735.74/710,340.60
  6. Step 6: Final answer
    x = 435,124.14

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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.