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Finding the Fourth Proportional to 660,474.40, 909,382.80 and 582,869.92

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Solution

The fourth proportional to 660,474.40, 909,382.80 and 582,869.92 is: 802,532.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,474.40 : 909,382.80 = 582,869.92 : x
  2. Step 2: Convert to fraction form
    660,474.40/909,382.80 = 582,869.92/x
  3. Step 3: Cross multiply
    660,474.40x = 909,382.80 × 582,869.92
  4. Step 4: Simplify right side
    660,474.40x = 530,051,879,885.38
  5. Step 5: Solve for x
    x = 530,051,879,885.38/660,474.40
  6. Step 6: Final answer
    x = 802,532.06

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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.