Home / 900,985.92-1,243,348.87-493,080.35

Finding the Fourth Proportional to 900,985.92, 1,243,348.87 and 493,080.35

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Solution

The fourth proportional to 900,985.92, 1,243,348.87 and 493,080.35 is: 680,444.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,985.92 : 1,243,348.87 = 493,080.35 : x
  2. Step 2: Convert to fraction form
    900,985.92/1,243,348.87 = 493,080.35/x
  3. Step 3: Cross multiply
    900,985.92x = 1,243,348.87 × 493,080.35
  4. Step 4: Simplify right side
    900,985.92x = 613,070,895,991.71
  5. Step 5: Solve for x
    x = 613,070,895,991.71/900,985.92
  6. Step 6: Final answer
    x = 680,444.48

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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.