Home / 648,621.16-895,246.50-380,435.56

Finding the Fourth Proportional to 648,621.16, 895,246.50 and 380,435.56

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Solution

The fourth proportional to 648,621.16, 895,246.50 and 380,435.56 is: 525,088.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,621.16 : 895,246.50 = 380,435.56 : x
  2. Step 2: Convert to fraction form
    648,621.16/895,246.50 = 380,435.56/x
  3. Step 3: Cross multiply
    648,621.16x = 895,246.50 × 380,435.56
  4. Step 4: Simplify right side
    648,621.16x = 340,583,603,565.54
  5. Step 5: Solve for x
    x = 340,583,603,565.54/648,621.16
  6. Step 6: Final answer
    x = 525,088.64

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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.