Home / 900,898.16-1,243,239.55-492,999.98

Finding the Fourth Proportional to 900,898.16, 1,243,239.55 and 492,999.98

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Solution

The fourth proportional to 900,898.16, 1,243,239.55 and 492,999.98 is: 680,340.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,898.16 : 1,243,239.55 = 492,999.98 : x
  2. Step 2: Convert to fraction form
    900,898.16/1,243,239.55 = 492,999.98/x
  3. Step 3: Cross multiply
    900,898.16x = 1,243,239.55 × 492,999.98
  4. Step 4: Simplify right side
    900,898.16x = 612,917,073,285.21
  5. Step 5: Solve for x
    x = 612,917,073,285.21/900,898.16
  6. Step 6: Final answer
    x = 680,340.02

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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.