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Finding the Fourth Proportional to 423,006.40, 633,262.96 and 370,518.40

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Solution

The fourth proportional to 423,006.40, 633,262.96 and 370,518.40 is: 554,685.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,006.40 : 633,262.96 = 370,518.40 : x
  2. Step 2: Convert to fraction form
    423,006.40/633,262.96 = 370,518.40/x
  3. Step 3: Cross multiply
    423,006.40x = 633,262.96 × 370,518.40
  4. Step 4: Simplify right side
    423,006.40x = 234,635,578,718.46
  5. Step 5: Solve for x
    x = 234,635,578,718.46/423,006.40
  6. Step 6: Final answer
    x = 554,685.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.