Home / 986,985.64-1,480,532.55-313,018.15

Finding the Fourth Proportional to 986,985.64, 1,480,532.55 and 313,018.15

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Solution

The fourth proportional to 986,985.64, 1,480,532.55 and 313,018.15 is: 469,544.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,985.64 : 1,480,532.55 = 313,018.15 : x
  2. Step 2: Convert to fraction form
    986,985.64/1,480,532.55 = 313,018.15/x
  3. Step 3: Cross multiply
    986,985.64x = 1,480,532.55 × 313,018.15
  4. Step 4: Simplify right side
    986,985.64x = 463,433,559,815.78
  5. Step 5: Solve for x
    x = 463,433,559,815.78/986,985.64
  6. Step 6: Final answer
    x = 469,544.38

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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.