Home / 740,035.90-1,021,252.62-400,504.12

Finding the Fourth Proportional to 740,035.90, 1,021,252.62 and 400,504.12

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Solution

The fourth proportional to 740,035.90, 1,021,252.62 and 400,504.12 is: 552,697.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,035.90 : 1,021,252.62 = 400,504.12 : x
  2. Step 2: Convert to fraction form
    740,035.90/1,021,252.62 = 400,504.12/x
  3. Step 3: Cross multiply
    740,035.90x = 1,021,252.62 × 400,504.12
  4. Step 4: Simplify right side
    740,035.90x = 409,015,881,870.79
  5. Step 5: Solve for x
    x = 409,015,881,870.79/740,035.90
  6. Step 6: Final answer
    x = 552,697.35

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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.