Home / 880,672.87-1,215,328.56-498,773.46

Finding the Fourth Proportional to 880,672.87, 1,215,328.56 and 498,773.46

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Solution

The fourth proportional to 880,672.87, 1,215,328.56 and 498,773.46 is: 688,307.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,672.87 : 1,215,328.56 = 498,773.46 : x
  2. Step 2: Convert to fraction form
    880,672.87/1,215,328.56 = 498,773.46/x
  3. Step 3: Cross multiply
    880,672.87x = 1,215,328.56 × 498,773.46
  4. Step 4: Simplify right side
    880,672.87x = 606,173,630,908.02
  5. Step 5: Solve for x
    x = 606,173,630,908.02/880,672.87
  6. Step 6: Final answer
    x = 688,307.37

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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.