Home / 878,742.28-1,317,208.38-346,047.40

Finding the Fourth Proportional to 878,742.28, 1,317,208.38 and 346,047.40

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Solution

The fourth proportional to 878,742.28, 1,317,208.38 and 346,047.40 is: 518,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,742.28 : 1,317,208.38 = 346,047.40 : x
  2. Step 2: Convert to fraction form
    878,742.28/1,317,208.38 = 346,047.40/x
  3. Step 3: Cross multiply
    878,742.28x = 1,317,208.38 × 346,047.40
  4. Step 4: Simplify right side
    878,742.28x = 455,816,535,157.21
  5. Step 5: Solve for x
    x = 455,816,535,157.21/878,742.28
  6. Step 6: Final answer
    x = 518,714.70

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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.