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Finding the Fourth Proportional to 526,792.91, 726,971.44 and 285,075.35

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Solution

The fourth proportional to 526,792.91, 726,971.44 and 285,075.35 is: 393,402.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,792.91 : 726,971.44 = 285,075.35 : x
  2. Step 2: Convert to fraction form
    526,792.91/726,971.44 = 285,075.35/x
  3. Step 3: Cross multiply
    526,792.91x = 726,971.44 × 285,075.35
  4. Step 4: Simplify right side
    526,792.91x = 207,241,632,637.77
  5. Step 5: Solve for x
    x = 207,241,632,637.77/526,792.91
  6. Step 6: Final answer
    x = 393,402.47

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1.5x scale

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.