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Finding the Fourth Proportional to 684,901.41, 945,428.88 and 613,156.87

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Solution

The fourth proportional to 684,901.41, 945,428.88 and 613,156.87 is: 846,393.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,901.41 : 945,428.88 = 613,156.87 : x
  2. Step 2: Convert to fraction form
    684,901.41/945,428.88 = 613,156.87/x
  3. Step 3: Cross multiply
    684,901.41x = 945,428.88 × 613,156.87
  4. Step 4: Simplify right side
    684,901.41x = 579,696,212,868.41
  5. Step 5: Solve for x
    x = 579,696,212,868.41/684,901.41
  6. Step 6: Final answer
    x = 846,393.66

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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.