Home / 920,056.45-1,269,689.97-506,641.69

Finding the Fourth Proportional to 920,056.45, 1,269,689.97 and 506,641.69

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Solution

The fourth proportional to 920,056.45, 1,269,689.97 and 506,641.69 is: 699,172.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,056.45 : 1,269,689.97 = 506,641.69 : x
  2. Step 2: Convert to fraction form
    920,056.45/1,269,689.97 = 506,641.69/x
  3. Step 3: Cross multiply
    920,056.45x = 1,269,689.97 × 506,641.69
  4. Step 4: Simplify right side
    920,056.45x = 643,277,872,176.85
  5. Step 5: Solve for x
    x = 643,277,872,176.85/920,056.45
  6. Step 6: Final answer
    x = 699,172.18

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Double scale
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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.