Home / 1,007,125.20-1,390,126.23-658,316.34

Finding the Fourth Proportional to 1,007,125.20, 1,390,126.23 and 658,316.34

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Solution

The fourth proportional to 1,007,125.20, 1,390,126.23 and 658,316.34 is: 908,668.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,125.20 : 1,390,126.23 = 658,316.34 : x
  2. Step 2: Convert to fraction form
    1,007,125.20/1,390,126.23 = 658,316.34/x
  3. Step 3: Cross multiply
    1,007,125.20x = 1,390,126.23 × 658,316.34
  4. Step 4: Simplify right side
    1,007,125.20x = 915,142,811,871.60
  5. Step 5: Solve for x
    x = 915,142,811,871.60/1,007,125.20
  6. Step 6: Final answer
    x = 908,668.37

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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.