Home / 645,083.16-890,331.12-373,113.24

Finding the Fourth Proportional to 645,083.16, 890,331.12 and 373,113.24

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Solution

The fourth proportional to 645,083.16, 890,331.12 and 373,113.24 is: 514,963.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,083.16 : 890,331.12 = 373,113.24 : x
  2. Step 2: Convert to fraction form
    645,083.16/890,331.12 = 373,113.24/x
  3. Step 3: Cross multiply
    645,083.16x = 890,331.12 × 373,113.24
  4. Step 4: Simplify right side
    645,083.16x = 332,194,328,856.03
  5. Step 5: Solve for x
    x = 332,194,328,856.03/645,083.16
  6. Step 6: Final answer
    x = 514,963.57

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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.