Home / 1,424,557.60-2,136,836.40-427,285.60

Finding the Fourth Proportional to 1,424,557.60, 2,136,836.40 and 427,285.60

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Solution

The fourth proportional to 1,424,557.60, 2,136,836.40 and 427,285.60 is: 640,928.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,557.60 : 2,136,836.40 = 427,285.60 : x
  2. Step 2: Convert to fraction form
    1,424,557.60/2,136,836.40 = 427,285.60/x
  3. Step 3: Cross multiply
    1,424,557.60x = 2,136,836.40 × 427,285.60
  4. Step 4: Simplify right side
    1,424,557.60x = 913,039,423,275.84
  5. Step 5: Solve for x
    x = 913,039,423,275.84/1,424,557.60
  6. Step 6: Final answer
    x = 640,928.40

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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.