Home / 526,987.58-790,038.38-426,899.57

Finding the Fourth Proportional to 526,987.58, 790,038.38 and 426,899.57

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Solution

The fourth proportional to 526,987.58, 790,038.38 and 426,899.57 is: 639,990.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,987.58 : 790,038.38 = 426,899.57 : x
  2. Step 2: Convert to fraction form
    526,987.58/790,038.38 = 426,899.57/x
  3. Step 3: Cross multiply
    526,987.58x = 790,038.38 × 426,899.57
  4. Step 4: Simplify right side
    526,987.58x = 337,267,041,822.55
  5. Step 5: Solve for x
    x = 337,267,041,822.55/526,987.58
  6. Step 6: Final answer
    x = 639,990.50

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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.