Home / 947,017.95-1,306,884.72-511,435.25

Finding the Fourth Proportional to 947,017.95, 1,306,884.72 and 511,435.25

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Solution

The fourth proportional to 947,017.95, 1,306,884.72 and 511,435.25 is: 705,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,017.95 : 1,306,884.72 = 511,435.25 : x
  2. Step 2: Convert to fraction form
    947,017.95/1,306,884.72 = 511,435.25/x
  3. Step 3: Cross multiply
    947,017.95x = 1,306,884.72 × 511,435.25
  4. Step 4: Simplify right side
    947,017.95x = 668,386,914,204.42
  5. Step 5: Solve for x
    x = 668,386,914,204.42/947,017.95
  6. Step 6: Final answer
    x = 705,780.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.