Home / 771,719.87-1,157,623.55-239,316.59

Finding the Fourth Proportional to 771,719.87, 1,157,623.55 and 239,316.59

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Solution

The fourth proportional to 771,719.87, 1,157,623.55 and 239,316.59 is: 358,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,719.87 : 1,157,623.55 = 239,316.59 : x
  2. Step 2: Convert to fraction form
    771,719.87/1,157,623.55 = 239,316.59/x
  3. Step 3: Cross multiply
    771,719.87x = 1,157,623.55 × 239,316.59
  4. Step 4: Simplify right side
    771,719.87x = 277,038,519,293.11
  5. Step 5: Solve for x
    x = 277,038,519,293.11/771,719.87
  6. Step 6: Final answer
    x = 358,988.45

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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.