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Finding the Fourth Proportional to 507,758.76, 700,702.72 and 278,328.80

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Solution

The fourth proportional to 507,758.76, 700,702.72 and 278,328.80 is: 384,091.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,758.76 : 700,702.72 = 278,328.80 : x
  2. Step 2: Convert to fraction form
    507,758.76/700,702.72 = 278,328.80/x
  3. Step 3: Cross multiply
    507,758.76x = 700,702.72 × 278,328.80
  4. Step 4: Simplify right side
    507,758.76x = 195,025,747,214.34
  5. Step 5: Solve for x
    x = 195,025,747,214.34/507,758.76
  6. Step 6: Final answer
    x = 384,091.35

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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.