Home / 2,911,325.88-4,017,645.64-1,688,356.50

Finding the Fourth Proportional to 2,911,325.88, 4,017,645.64 and 1,688,356.50

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Solution

The fourth proportional to 2,911,325.88, 4,017,645.64 and 1,688,356.50 is: 2,329,941.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911,325.88 : 4,017,645.64 = 1,688,356.50 : x
  2. Step 2: Convert to fraction form
    2,911,325.88/4,017,645.64 = 1,688,356.50/x
  3. Step 3: Cross multiply
    2,911,325.88x = 4,017,645.64 × 1,688,356.50
  4. Step 4: Simplify right side
    2,911,325.88x = 6,783,218,130,990.66
  5. Step 5: Solve for x
    x = 6,783,218,130,990.66/2,911,325.88
  6. Step 6: Final answer
    x = 2,329,941.21

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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.