Home / 389,911.46-583,536.42-326,802.87

Finding the Fourth Proportional to 389,911.46, 583,536.42 and 326,802.87

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Solution

The fourth proportional to 389,911.46, 583,536.42 and 326,802.87 is: 489,088.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,911.46 : 583,536.42 = 326,802.87 : x
  2. Step 2: Convert to fraction form
    389,911.46/583,536.42 = 326,802.87/x
  3. Step 3: Cross multiply
    389,911.46x = 583,536.42 × 326,802.87
  4. Step 4: Simplify right side
    389,911.46x = 190,701,376,805.53
  5. Step 5: Solve for x
    x = 190,701,376,805.53/389,911.46
  6. Step 6: Final answer
    x = 489,088.93

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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.