Home / 917,569.68-1,376,368.38-318,549.87

Finding the Fourth Proportional to 917,569.68, 1,376,368.38 and 318,549.87

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Solution

The fourth proportional to 917,569.68, 1,376,368.38 and 318,549.87 is: 477,829.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,569.68 : 1,376,368.38 = 318,549.87 : x
  2. Step 2: Convert to fraction form
    917,569.68/1,376,368.38 = 318,549.87/x
  3. Step 3: Cross multiply
    917,569.68x = 1,376,368.38 × 318,549.87
  4. Step 4: Simplify right side
    917,569.68x = 438,441,968,521.11
  5. Step 5: Solve for x
    x = 438,441,968,521.11/917,569.68
  6. Step 6: Final answer
    x = 477,829.62

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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.