Home / 985,317.82-1,359,720.45-555,598.28

Finding the Fourth Proportional to 985,317.82, 1,359,720.45 and 555,598.28

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Solution

The fourth proportional to 985,317.82, 1,359,720.45 and 555,598.28 is: 766,715.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,317.82 : 1,359,720.45 = 555,598.28 : x
  2. Step 2: Convert to fraction form
    985,317.82/1,359,720.45 = 555,598.28/x
  3. Step 3: Cross multiply
    985,317.82x = 1,359,720.45 × 555,598.28
  4. Step 4: Simplify right side
    985,317.82x = 755,458,346,700.13
  5. Step 5: Solve for x
    x = 755,458,346,700.13/985,317.82
  6. Step 6: Final answer
    x = 766,715.40

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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.