Home / 978,240.88-1,349,399.04-615,089.20

Finding the Fourth Proportional to 978,240.88, 1,349,399.04 and 615,089.20

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Solution

The fourth proportional to 978,240.88, 1,349,399.04 and 615,089.20 is: 848,462.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,240.88 : 1,349,399.04 = 615,089.20 : x
  2. Step 2: Convert to fraction form
    978,240.88/1,349,399.04 = 615,089.20/x
  3. Step 3: Cross multiply
    978,240.88x = 1,349,399.04 × 615,089.20
  4. Step 4: Simplify right side
    978,240.88x = 830,000,775,994.37
  5. Step 5: Solve for x
    x = 830,000,775,994.37/978,240.88
  6. Step 6: Final answer
    x = 848,462.57

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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.