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Finding the Fourth Proportional to 877,653.60, 1,315,443.60 and 372,213.60

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Solution

The fourth proportional to 877,653.60, 1,315,443.60 and 372,213.60 is: 557,880.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,653.60 : 1,315,443.60 = 372,213.60 : x
  2. Step 2: Convert to fraction form
    877,653.60/1,315,443.60 = 372,213.60/x
  3. Step 3: Cross multiply
    877,653.60x = 1,315,443.60 × 372,213.60
  4. Step 4: Simplify right side
    877,653.60x = 489,625,997,952.96
  5. Step 5: Solve for x
    x = 489,625,997,952.96/877,653.60
  6. Step 6: Final answer
    x = 557,880.69

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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.