Home / 985,679.03-1,360,254.78-578,074.86

Finding the Fourth Proportional to 985,679.03, 1,360,254.78 and 578,074.86

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Solution

The fourth proportional to 985,679.03, 1,360,254.78 and 578,074.86 is: 797,753.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,679.03 : 1,360,254.78 = 578,074.86 : x
  2. Step 2: Convert to fraction form
    985,679.03/1,360,254.78 = 578,074.86/x
  3. Step 3: Cross multiply
    985,679.03x = 1,360,254.78 × 578,074.86
  4. Step 4: Simplify right side
    985,679.03x = 786,329,088,962.35
  5. Step 5: Solve for x
    x = 786,329,088,962.35/985,679.03
  6. Step 6: Final answer
    x = 797,753.69

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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.