Home / 917,317.30-1,374,809.55-442,981.30

Finding the Fourth Proportional to 917,317.30, 1,374,809.55 and 442,981.30

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Solution

The fourth proportional to 917,317.30, 1,374,809.55 and 442,981.30 is: 663,908.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,317.30 : 1,374,809.55 = 442,981.30 : x
  2. Step 2: Convert to fraction form
    917,317.30/1,374,809.55 = 442,981.30/x
  3. Step 3: Cross multiply
    917,317.30x = 1,374,809.55 × 442,981.30
  4. Step 4: Simplify right side
    917,317.30x = 609,014,921,711.42
  5. Step 5: Solve for x
    x = 609,014,921,711.42/917,317.30
  6. Step 6: Final answer
    x = 663,908.68

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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.