Home / 490,452-731,386.08-485,967.84

Finding the Fourth Proportional to 490,452, 731,386.08 and 485,967.84

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Solution

The fourth proportional to 490,452, 731,386.08 and 485,967.84 is: 724,699.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,452 : 731,386.08 = 485,967.84 : x
  2. Step 2: Convert to fraction form
    490,452/731,386.08 = 485,967.84/x
  3. Step 3: Cross multiply
    490,452x = 731,386.08 × 485,967.84
  4. Step 4: Simplify right side
    490,452x = 355,430,113,503.67
  5. Step 5: Solve for x
    x = 355,430,113,503.67/490,452
  6. Step 6: Final answer
    x = 724,699.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.