Home / 849,987.10-1,274,980.65-289,021.60

Finding the Fourth Proportional to 849,987.10, 1,274,980.65 and 289,021.60

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Solution

The fourth proportional to 849,987.10, 1,274,980.65 and 289,021.60 is: 433,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,987.10 : 1,274,980.65 = 289,021.60 : x
  2. Step 2: Convert to fraction form
    849,987.10/1,274,980.65 = 289,021.60/x
  3. Step 3: Cross multiply
    849,987.10x = 1,274,980.65 × 289,021.60
  4. Step 4: Simplify right side
    849,987.10x = 368,496,947,432.04
  5. Step 5: Solve for x
    x = 368,496,947,432.04/849,987.10
  6. Step 6: Final answer
    x = 433,532.40

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Similar ratio
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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.