Home / 986,900.40-1,480,496.40-313,045.20

Finding the Fourth Proportional to 986,900.40, 1,480,496.40 and 313,045.20

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Solution

The fourth proportional to 986,900.40, 1,480,496.40 and 313,045.20 is: 469,614.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,900.40 : 1,480,496.40 = 313,045.20 : x
  2. Step 2: Convert to fraction form
    986,900.40/1,480,496.40 = 313,045.20/x
  3. Step 3: Cross multiply
    986,900.40x = 1,480,496.40 × 313,045.20
  4. Step 4: Simplify right side
    986,900.40x = 463,462,291,637.28
  5. Step 5: Solve for x
    x = 463,462,291,637.28/986,900.40
  6. Step 6: Final answer
    x = 469,614.05

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1.5x scale

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.