Home / 738,638.08-1,020,160.85-496,500.13

Finding the Fourth Proportional to 738,638.08, 1,020,160.85 and 496,500.13

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Solution

The fourth proportional to 738,638.08, 1,020,160.85 and 496,500.13 is: 685,735.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,638.08 : 1,020,160.85 = 496,500.13 : x
  2. Step 2: Convert to fraction form
    738,638.08/1,020,160.85 = 496,500.13/x
  3. Step 3: Cross multiply
    738,638.08x = 1,020,160.85 × 496,500.13
  4. Step 4: Simplify right side
    738,638.08x = 506,509,992,163.41
  5. Step 5: Solve for x
    x = 506,509,992,163.41/738,638.08
  6. Step 6: Final answer
    x = 685,735.01

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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.