Home / 879,752.76-1,214,065.28-477,344.76

Finding the Fourth Proportional to 879,752.76, 1,214,065.28 and 477,344.76

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Solution

The fourth proportional to 879,752.76, 1,214,065.28 and 477,344.76 is: 658,739.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,752.76 : 1,214,065.28 = 477,344.76 : x
  2. Step 2: Convert to fraction form
    879,752.76/1,214,065.28 = 477,344.76/x
  3. Step 3: Cross multiply
    879,752.76x = 1,214,065.28 × 477,344.76
  4. Step 4: Simplify right side
    879,752.76x = 579,527,699,705.93
  5. Step 5: Solve for x
    x = 579,527,699,705.93/879,752.76
  6. Step 6: Final answer
    x = 658,739.28

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Double scale
Find fourth proportional to 879,753.76, 1,214,066.66 and 477,345.76
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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.