Home / 879,679.72-1,319,432.08-406,358.24

Finding the Fourth Proportional to 879,679.72, 1,319,432.08 and 406,358.24

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Solution

The fourth proportional to 879,679.72, 1,319,432.08 and 406,358.24 is: 609,496.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,679.72 : 1,319,432.08 = 406,358.24 : x
  2. Step 2: Convert to fraction form
    879,679.72/1,319,432.08 = 406,358.24/x
  3. Step 3: Cross multiply
    879,679.72x = 1,319,432.08 × 406,358.24
  4. Step 4: Simplify right side
    879,679.72x = 536,162,097,828.34
  5. Step 5: Solve for x
    x = 536,162,097,828.34/879,679.72
  6. Step 6: Final answer
    x = 609,496.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.