Home / 788,491.84-1,088,118.57-425,915.71

Finding the Fourth Proportional to 788,491.84, 1,088,118.57 and 425,915.71

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Solution

The fourth proportional to 788,491.84, 1,088,118.57 and 425,915.71 is: 587,763.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,491.84 : 1,088,118.57 = 425,915.71 : x
  2. Step 2: Convert to fraction form
    788,491.84/1,088,118.57 = 425,915.71/x
  3. Step 3: Cross multiply
    788,491.84x = 1,088,118.57 × 425,915.71
  4. Step 4: Simplify right side
    788,491.84x = 463,446,785,735.56
  5. Step 5: Solve for x
    x = 463,446,785,735.56/788,491.84
  6. Step 6: Final answer
    x = 587,763.58

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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.