Home / 858,432.49-1,288,912.75-480,094.47

Finding the Fourth Proportional to 858,432.49, 1,288,912.75 and 480,094.47

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Solution

The fourth proportional to 858,432.49, 1,288,912.75 and 480,094.47 is: 720,848.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,432.49 : 1,288,912.75 = 480,094.47 : x
  2. Step 2: Convert to fraction form
    858,432.49/1,288,912.75 = 480,094.47/x
  3. Step 3: Cross multiply
    858,432.49x = 1,288,912.75 × 480,094.47
  4. Step 4: Simplify right side
    858,432.49x = 618,799,883,587.49
  5. Step 5: Solve for x
    x = 618,799,883,587.49/858,432.49
  6. Step 6: Final answer
    x = 720,848.63

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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.