Home / 1,457,931.39-2,011,946.19-813,351.60

Finding the Fourth Proportional to 1,457,931.39, 2,011,946.19 and 813,351.60

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Solution

The fourth proportional to 1,457,931.39, 2,011,946.19 and 813,351.60 is: 1,122,425.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,931.39 : 2,011,946.19 = 813,351.60 : x
  2. Step 2: Convert to fraction form
    1,457,931.39/2,011,946.19 = 813,351.60/x
  3. Step 3: Cross multiply
    1,457,931.39x = 2,011,946.19 × 813,351.60
  4. Step 4: Simplify right side
    1,457,931.39x = 1,636,419,652,750.40
  5. Step 5: Solve for x
    x = 1,636,419,652,750.40/1,457,931.39
  6. Step 6: Final answer
    x = 1,122,425.69

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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.