Home / 510,355.04-704,367.36-306,518.52

Finding the Fourth Proportional to 510,355.04, 704,367.36 and 306,518.52

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Solution

The fourth proportional to 510,355.04, 704,367.36 and 306,518.52 is: 423,042.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,355.04 : 704,367.36 = 306,518.52 : x
  2. Step 2: Convert to fraction form
    510,355.04/704,367.36 = 306,518.52/x
  3. Step 3: Cross multiply
    510,355.04x = 704,367.36 × 306,518.52
  4. Step 4: Simplify right side
    510,355.04x = 215,901,640,723.51
  5. Step 5: Solve for x
    x = 215,901,640,723.51/510,355.04
  6. Step 6: Final answer
    x = 423,042.05

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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.