Home / 776,486.28-1,071,542.54-432,314.67

Finding the Fourth Proportional to 776,486.28, 1,071,542.54 and 432,314.67

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Solution

The fourth proportional to 776,486.28, 1,071,542.54 and 432,314.67 is: 596,589.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,486.28 : 1,071,542.54 = 432,314.67 : x
  2. Step 2: Convert to fraction form
    776,486.28/1,071,542.54 = 432,314.67/x
  3. Step 3: Cross multiply
    776,486.28x = 1,071,542.54 × 432,314.67
  4. Step 4: Simplify right side
    776,486.28x = 463,243,557,409.49
  5. Step 5: Solve for x
    x = 463,243,557,409.49/776,486.28
  6. Step 6: Final answer
    x = 596,589.49

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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.