Home / 989,037.77-1,483,780.41-315,157.46

Finding the Fourth Proportional to 989,037.77, 1,483,780.41 and 315,157.46

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Solution

The fourth proportional to 989,037.77, 1,483,780.41 and 315,157.46 is: 472,807.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,037.77 : 1,483,780.41 = 315,157.46 : x
  2. Step 2: Convert to fraction form
    989,037.77/1,483,780.41 = 315,157.46/x
  3. Step 3: Cross multiply
    989,037.77x = 1,483,780.41 × 315,157.46
  4. Step 4: Simplify right side
    989,037.77x = 467,624,457,794.46
  5. Step 5: Solve for x
    x = 467,624,457,794.46/989,037.77
  6. Step 6: Final answer
    x = 472,807.48

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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.