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Finding the Fourth Proportional to 660,566.40, 909,509.76 and 582,961.92

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Solution

The fourth proportional to 660,566.40, 909,509.76 and 582,961.92 is: 802,658.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,566.40 : 909,509.76 = 582,961.92 : x
  2. Step 2: Convert to fraction form
    660,566.40/909,509.76 = 582,961.92/x
  3. Step 3: Cross multiply
    660,566.40x = 909,509.76 × 582,961.92
  4. Step 4: Simplify right side
    660,566.40x = 530,209,555,948.34
  5. Step 5: Solve for x
    x = 530,209,555,948.34/660,566.40
  6. Step 6: Final answer
    x = 802,658.98

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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.