Home / 933,742.56-1,288,547.24-571,139.78

Finding the Fourth Proportional to 933,742.56, 1,288,547.24 and 571,139.78

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Solution

The fourth proportional to 933,742.56, 1,288,547.24 and 571,139.78 is: 788,162.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,742.56 : 1,288,547.24 = 571,139.78 : x
  2. Step 2: Convert to fraction form
    933,742.56/1,288,547.24 = 571,139.78/x
  3. Step 3: Cross multiply
    933,742.56x = 1,288,547.24 × 571,139.78
  4. Step 4: Simplify right side
    933,742.56x = 735,940,584,317.51
  5. Step 5: Solve for x
    x = 735,940,584,317.51/933,742.56
  6. Step 6: Final answer
    x = 788,162.19

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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.