Home / 738,687.78-1,019,327.88-416,477.07

Finding the Fourth Proportional to 738,687.78, 1,019,327.88 and 416,477.07

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Solution

The fourth proportional to 738,687.78, 1,019,327.88 and 416,477.07 is: 574,703.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,687.78 : 1,019,327.88 = 416,477.07 : x
  2. Step 2: Convert to fraction form
    738,687.78/1,019,327.88 = 416,477.07/x
  3. Step 3: Cross multiply
    738,687.78x = 1,019,327.88 × 416,477.07
  4. Step 4: Simplify right side
    738,687.78x = 424,526,688,831.71
  5. Step 5: Solve for x
    x = 424,526,688,831.71/738,687.78
  6. Step 6: Final answer
    x = 574,703.82

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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.