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Finding the Fourth Proportional to 607,534.40, 909,989.40 and 528,802.40

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Solution

The fourth proportional to 607,534.40, 909,989.40 and 528,802.40 is: 792,061.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,534.40 : 909,989.40 = 528,802.40 : x
  2. Step 2: Convert to fraction form
    607,534.40/909,989.40 = 528,802.40/x
  3. Step 3: Cross multiply
    607,534.40x = 909,989.40 × 528,802.40
  4. Step 4: Simplify right side
    607,534.40x = 481,204,578,694.56
  5. Step 5: Solve for x
    x = 481,204,578,694.56/607,534.40
  6. Step 6: Final answer
    x = 792,061.45

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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.