Home / 710,412.60-1,066,223.70-289,990.20

Finding the Fourth Proportional to 710,412.60, 1,066,223.70 and 289,990.20

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Solution

The fourth proportional to 710,412.60, 1,066,223.70 and 289,990.20 is: 435,232.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,412.60 : 1,066,223.70 = 289,990.20 : x
  2. Step 2: Convert to fraction form
    710,412.60/1,066,223.70 = 289,990.20/x
  3. Step 3: Cross multiply
    710,412.60x = 1,066,223.70 × 289,990.20
  4. Step 4: Simplify right side
    710,412.60x = 309,194,424,007.74
  5. Step 5: Solve for x
    x = 309,194,424,007.74/710,412.60
  6. Step 6: Final answer
    x = 435,232.18

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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.