Home / 2,157,981.72-2,977,570.08-1,240,033.47

Finding the Fourth Proportional to 2,157,981.72, 2,977,570.08 and 1,240,033.47

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Solution

The fourth proportional to 2,157,981.72, 2,977,570.08 and 1,240,033.47 is: 1,710,990.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,981.72 : 2,977,570.08 = 1,240,033.47 : x
  2. Step 2: Convert to fraction form
    2,157,981.72/2,977,570.08 = 1,240,033.47/x
  3. Step 3: Cross multiply
    2,157,981.72x = 2,977,570.08 × 1,240,033.47
  4. Step 4: Simplify right side
    2,157,981.72x = 3,692,286,558,470.58
  5. Step 5: Solve for x
    x = 3,692,286,558,470.58/2,157,981.72
  6. Step 6: Final answer
    x = 1,710,990.66

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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.