Home / 982,907.86-1,356,266.55-553,162.36

Finding the Fourth Proportional to 982,907.86, 1,356,266.55 and 553,162.36

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Solution

The fourth proportional to 982,907.86, 1,356,266.55 and 553,162.36 is: 763,281.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,907.86 : 1,356,266.55 = 553,162.36 : x
  2. Step 2: Convert to fraction form
    982,907.86/1,356,266.55 = 553,162.36/x
  3. Step 3: Cross multiply
    982,907.86x = 1,356,266.55 × 553,162.36
  4. Step 4: Simplify right side
    982,907.86x = 750,235,605,587.06
  5. Step 5: Solve for x
    x = 750,235,605,587.06/982,907.86
  6. Step 6: Final answer
    x = 763,281.72

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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.