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Finding the Fourth Proportional to 684,106.94, 944,334 and 612,362.90

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Solution

The fourth proportional to 684,106.94, 944,334 and 612,362.90 is: 845,299.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,106.94 : 944,334 = 612,362.90 : x
  2. Step 2: Convert to fraction form
    684,106.94/944,334 = 612,362.90/x
  3. Step 3: Cross multiply
    684,106.94x = 944,334 × 612,362.90
  4. Step 4: Simplify right side
    684,106.94x = 578,275,106,808.60
  5. Step 5: Solve for x
    x = 578,275,106,808.60/684,106.94
  6. Step 6: Final answer
    x = 845,299.28

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1.5x scale

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.