Home / 978,340.30-1,350,123.07-732,890.26

Finding the Fourth Proportional to 978,340.30, 1,350,123.07 and 732,890.26

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Solution

The fourth proportional to 978,340.30, 1,350,123.07 and 732,890.26 is: 1,011,398.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,340.30 : 1,350,123.07 = 732,890.26 : x
  2. Step 2: Convert to fraction form
    978,340.30/1,350,123.07 = 732,890.26/x
  3. Step 3: Cross multiply
    978,340.30x = 1,350,123.07 × 732,890.26
  4. Step 4: Simplify right side
    978,340.30x = 989,492,047,804.30
  5. Step 5: Solve for x
    x = 989,492,047,804.30/978,340.30
  6. Step 6: Final answer
    x = 1,011,398.64

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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.