Home / 884,360.55-1,326,821.25-315,729.45

Finding the Fourth Proportional to 884,360.55, 1,326,821.25 and 315,729.45

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Solution

The fourth proportional to 884,360.55, 1,326,821.25 and 315,729.45 is: 473,694.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,360.55 : 1,326,821.25 = 315,729.45 : x
  2. Step 2: Convert to fraction form
    884,360.55/1,326,821.25 = 315,729.45/x
  3. Step 3: Cross multiply
    884,360.55x = 1,326,821.25 × 315,729.45
  4. Step 4: Simplify right side
    884,360.55x = 418,916,543,510.81
  5. Step 5: Solve for x
    x = 418,916,543,510.81/884,360.55
  6. Step 6: Final answer
    x = 473,694.29

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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.