Home / 511,915.02-767,544.46-212,602.20

Finding the Fourth Proportional to 511,915.02, 767,544.46 and 212,602.20

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Solution

The fourth proportional to 511,915.02, 767,544.46 and 212,602.20 is: 318,767.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,915.02 : 767,544.46 = 212,602.20 : x
  2. Step 2: Convert to fraction form
    511,915.02/767,544.46 = 212,602.20/x
  3. Step 3: Cross multiply
    511,915.02x = 767,544.46 × 212,602.20
  4. Step 4: Simplify right side
    511,915.02x = 163,181,640,793.81
  5. Step 5: Solve for x
    x = 163,181,640,793.81/511,915.02
  6. Step 6: Final answer
    x = 318,767.05

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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.