Home / 768,904.99-1,060,875.83-442,200.20

Finding the Fourth Proportional to 768,904.99, 1,060,875.83 and 442,200.20

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Solution

The fourth proportional to 768,904.99, 1,060,875.83 and 442,200.20 is: 610,113.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,904.99 : 1,060,875.83 = 442,200.20 : x
  2. Step 2: Convert to fraction form
    768,904.99/1,060,875.83 = 442,200.20/x
  3. Step 3: Cross multiply
    768,904.99x = 1,060,875.83 × 442,200.20
  4. Step 4: Simplify right side
    768,904.99x = 469,119,500,002.29
  5. Step 5: Solve for x
    x = 469,119,500,002.29/768,904.99
  6. Step 6: Final answer
    x = 610,113.74

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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.