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Finding the Fourth Proportional to 507,525.85, 700,415.05 and 278,083.59

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Solution

The fourth proportional to 507,525.85, 700,415.05 and 278,083.59 is: 383,771.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,525.85 : 700,415.05 = 278,083.59 : x
  2. Step 2: Convert to fraction form
    507,525.85/700,415.05 = 278,083.59/x
  3. Step 3: Cross multiply
    507,525.85x = 700,415.05 × 278,083.59
  4. Step 4: Simplify right side
    507,525.85x = 194,773,931,594.03
  5. Step 5: Solve for x
    x = 194,773,931,594.03/507,525.85
  6. Step 6: Final answer
    x = 383,771.45

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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.