Home / 976,398.80-1,464,036.95-520,428.33

Finding the Fourth Proportional to 976,398.80, 1,464,036.95 and 520,428.33

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Solution

The fourth proportional to 976,398.80, 1,464,036.95 and 520,428.33 is: 780,343.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,398.80 : 1,464,036.95 = 520,428.33 : x
  2. Step 2: Convert to fraction form
    976,398.80/1,464,036.95 = 520,428.33/x
  3. Step 3: Cross multiply
    976,398.80x = 1,464,036.95 × 520,428.33
  4. Step 4: Simplify right side
    976,398.80x = 761,926,302,344.65
  5. Step 5: Solve for x
    x = 761,926,302,344.65/976,398.80
  6. Step 6: Final answer
    x = 780,343.35

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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.