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Finding the Fourth Proportional to 636,541.32, 878,409.48 and 350,061.39

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Solution

The fourth proportional to 636,541.32, 878,409.48 and 350,061.39 is: 483,075.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,541.32 : 878,409.48 = 350,061.39 : x
  2. Step 2: Convert to fraction form
    636,541.32/878,409.48 = 350,061.39/x
  3. Step 3: Cross multiply
    636,541.32x = 878,409.48 × 350,061.39
  4. Step 4: Simplify right side
    636,541.32x = 307,497,243,557.98
  5. Step 5: Solve for x
    x = 307,497,243,557.98/636,541.32
  6. Step 6: Final answer
    x = 483,075.07

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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.