Home / 878,749.28-1,317,218.88-346,054.40

Finding the Fourth Proportional to 878,749.28, 1,317,218.88 and 346,054.40

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Solution

The fourth proportional to 878,749.28, 1,317,218.88 and 346,054.40 is: 518,725.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,749.28 : 1,317,218.88 = 346,054.40 : x
  2. Step 2: Convert to fraction form
    878,749.28/1,317,218.88 = 346,054.40/x
  3. Step 3: Cross multiply
    878,749.28x = 1,317,218.88 × 346,054.40
  4. Step 4: Simplify right side
    878,749.28x = 455,829,389,187.07
  5. Step 5: Solve for x
    x = 455,829,389,187.07/878,749.28
  6. Step 6: Final answer
    x = 518,725.19

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1.5x scale

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.