Home / 780,402.16-1,170,586.64-359,678.04

Finding the Fourth Proportional to 780,402.16, 1,170,586.64 and 359,678.04

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Solution

The fourth proportional to 780,402.16, 1,170,586.64 and 359,678.04 is: 539,509.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,402.16 : 1,170,586.64 = 359,678.04 : x
  2. Step 2: Convert to fraction form
    780,402.16/1,170,586.64 = 359,678.04/x
  3. Step 3: Cross multiply
    780,402.16x = 1,170,586.64 × 359,678.04
  4. Step 4: Simplify right side
    780,402.16x = 421,034,308,325.39
  5. Step 5: Solve for x
    x = 421,034,308,325.39/780,402.16
  6. Step 6: Final answer
    x = 539,509.41

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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.