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Finding the Fourth Proportional to 559,071.20, 838,606.80 and 525,828.80

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Solution

The fourth proportional to 559,071.20, 838,606.80 and 525,828.80 is: 788,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,071.20 : 838,606.80 = 525,828.80 : x
  2. Step 2: Convert to fraction form
    559,071.20/838,606.80 = 525,828.80/x
  3. Step 3: Cross multiply
    559,071.20x = 838,606.80 × 525,828.80
  4. Step 4: Simplify right side
    559,071.20x = 440,963,607,315.84
  5. Step 5: Solve for x
    x = 440,963,607,315.84/559,071.20
  6. Step 6: Final answer
    x = 788,743.20

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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.