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Finding the Fourth Proportional to 507,746.76, 700,662.02 and 278,260.31

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Solution

The fourth proportional to 507,746.76, 700,662.02 and 278,260.31 is: 383,983.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,746.76 : 700,662.02 = 278,260.31 : x
  2. Step 2: Convert to fraction form
    507,746.76/700,662.02 = 278,260.31/x
  3. Step 3: Cross multiply
    507,746.76x = 700,662.02 × 278,260.31
  4. Step 4: Simplify right side
    507,746.76x = 194,966,425,995.82
  5. Step 5: Solve for x
    x = 194,966,425,995.82/507,746.76
  6. Step 6: Final answer
    x = 383,983.59

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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.