Home / 739,406.54-1,020,428.28-416,999.00

Finding the Fourth Proportional to 739,406.54, 1,020,428.28 and 416,999.00

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Solution

The fourth proportional to 739,406.54, 1,020,428.28 and 416,999.00 is: 575,485.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,406.54 : 1,020,428.28 = 416,999.00 : x
  2. Step 2: Convert to fraction form
    739,406.54/1,020,428.28 = 416,999.00/x
  3. Step 3: Cross multiply
    739,406.54x = 1,020,428.28 × 416,999.00
  4. Step 4: Simplify right side
    739,406.54x = 425,517,574,882.79
  5. Step 5: Solve for x
    x = 425,517,574,882.79/739,406.54
  6. Step 6: Final answer
    x = 575,485.27

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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.