Home / 649,739.68-975,458.40-521,724.32

Finding the Fourth Proportional to 649,739.68, 975,458.40 and 521,724.32

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Solution

The fourth proportional to 649,739.68, 975,458.40 and 521,724.32 is: 783,268.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,739.68 : 975,458.40 = 521,724.32 : x
  2. Step 2: Convert to fraction form
    649,739.68/975,458.40 = 521,724.32/x
  3. Step 3: Cross multiply
    649,739.68x = 975,458.40 × 521,724.32
  4. Step 4: Simplify right side
    649,739.68x = 508,920,370,428.29
  5. Step 5: Solve for x
    x = 508,920,370,428.29/649,739.68
  6. Step 6: Final answer
    x = 783,268.11

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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.