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Finding the Fourth Proportional to 510,417.79, 704,352.35 and 280,970.35

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Solution

The fourth proportional to 510,417.79, 704,352.35 and 280,970.35 is: 387,725.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,417.79 : 704,352.35 = 280,970.35 : x
  2. Step 2: Convert to fraction form
    510,417.79/704,352.35 = 280,970.35/x
  3. Step 3: Cross multiply
    510,417.79x = 704,352.35 × 280,970.35
  4. Step 4: Simplify right side
    510,417.79x = 197,902,125,244.37
  5. Step 5: Solve for x
    x = 197,902,125,244.37/510,417.79
  6. Step 6: Final answer
    x = 387,725.76

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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.