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Finding the Fourth Proportional to 507,505.15, 700,349.34 and 278,060.59

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Solution

The fourth proportional to 507,505.15, 700,349.34 and 278,060.59 is: 383,719.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,505.15 : 700,349.34 = 278,060.59 : x
  2. Step 2: Convert to fraction form
    507,505.15/700,349.34 = 278,060.59/x
  3. Step 3: Cross multiply
    507,505.15x = 700,349.34 × 278,060.59
  4. Step 4: Simplify right side
    507,505.15x = 194,739,550,686.51
  5. Step 5: Solve for x
    x = 194,739,550,686.51/507,505.15
  6. Step 6: Final answer
    x = 383,719.36

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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.