Home / 1,578,931.29-2,178,923.66-853,777.28

Finding the Fourth Proportional to 1,578,931.29, 2,178,923.66 and 853,777.28

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Solution

The fourth proportional to 1,578,931.29, 2,178,923.66 and 853,777.28 is: 1,178,211.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,931.29 : 2,178,923.66 = 853,777.28 : x
  2. Step 2: Convert to fraction form
    1,578,931.29/2,178,923.66 = 853,777.28/x
  3. Step 3: Cross multiply
    1,578,931.29x = 2,178,923.66 × 853,777.28
  4. Step 4: Simplify right side
    1,578,931.29x = 1,860,315,520,142.53
  5. Step 5: Solve for x
    x = 1,860,315,520,142.53/1,578,931.29
  6. Step 6: Final answer
    x = 1,178,211.83

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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.