Home / 900,733.70-1,243,003.29-498,328.58

Finding the Fourth Proportional to 900,733.70, 1,243,003.29 and 498,328.58

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Solution

The fourth proportional to 900,733.70, 1,243,003.29 and 498,328.58 is: 687,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,733.70 : 1,243,003.29 = 498,328.58 : x
  2. Step 2: Convert to fraction form
    900,733.70/1,243,003.29 = 498,328.58/x
  3. Step 3: Cross multiply
    900,733.70x = 1,243,003.29 × 498,328.58
  4. Step 4: Simplify right side
    900,733.70x = 619,424,064,441.03
  5. Step 5: Solve for x
    x = 619,424,064,441.03/900,733.70
  6. Step 6: Final answer
    x = 687,688.34

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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.