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Finding the Fourth Proportional to 587,106.07, 810,130.75 and 345,300.42

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Solution

The fourth proportional to 587,106.07, 810,130.75 and 345,300.42 is: 476,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,106.07 : 810,130.75 = 345,300.42 : x
  2. Step 2: Convert to fraction form
    587,106.07/810,130.75 = 345,300.42/x
  3. Step 3: Cross multiply
    587,106.07x = 810,130.75 × 345,300.42
  4. Step 4: Simplify right side
    587,106.07x = 279,738,487,304.41
  5. Step 5: Solve for x
    x = 279,738,487,304.41/587,106.07
  6. Step 6: Final answer
    x = 476,470.10

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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.