Home / 942,329.79-1,412,957.52-643,172.49

Finding the Fourth Proportional to 942,329.79, 1,412,957.52 and 643,172.49

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Solution

The fourth proportional to 942,329.79, 1,412,957.52 and 643,172.49 is: 964,392.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,329.79 : 1,412,957.52 = 643,172.49 : x
  2. Step 2: Convert to fraction form
    942,329.79/1,412,957.52 = 643,172.49/x
  3. Step 3: Cross multiply
    942,329.79x = 1,412,957.52 × 643,172.49
  4. Step 4: Simplify right side
    942,329.79x = 908,775,406,402.63
  5. Step 5: Solve for x
    x = 908,775,406,402.63/942,329.79
  6. Step 6: Final answer
    x = 964,392.10

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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.