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Finding the Fourth Proportional to 1,578,977.70, 2,368,597.77 and 631,831.74

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Solution

The fourth proportional to 1,578,977.70, 2,368,597.77 and 631,831.74 is: 947,800.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,977.70 : 2,368,597.77 = 631,831.74 : x
  2. Step 2: Convert to fraction form
    1,578,977.70/2,368,597.77 = 631,831.74/x
  3. Step 3: Cross multiply
    1,578,977.70x = 2,368,597.77 × 631,831.74
  4. Step 4: Simplify right side
    1,578,977.70x = 1,496,555,250,379.22
  5. Step 5: Solve for x
    x = 1,496,555,250,379.22/1,578,977.70
  6. Step 6: Final answer
    x = 947,800.12

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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.