Home / 567,218.16-782,795.88-312,569.28

Finding the Fourth Proportional to 567,218.16, 782,795.88 and 312,569.28

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Solution

The fourth proportional to 567,218.16, 782,795.88 and 312,569.28 is: 431,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,218.16 : 782,795.88 = 312,569.28 : x
  2. Step 2: Convert to fraction form
    567,218.16/782,795.88 = 312,569.28/x
  3. Step 3: Cross multiply
    567,218.16x = 782,795.88 × 312,569.28
  4. Step 4: Simplify right side
    567,218.16x = 244,677,944,598.57
  5. Step 5: Solve for x
    x = 244,677,944,598.57/567,218.16
  6. Step 6: Final answer
    x = 431,364.79

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1.5x scale

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.