Home / 1,184,478.10-1,634,579.67-640,613.86

Finding the Fourth Proportional to 1,184,478.10, 1,634,579.67 and 640,613.86

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Solution

The fourth proportional to 1,184,478.10, 1,634,579.67 and 640,613.86 is: 884,047.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184,478.10 : 1,634,579.67 = 640,613.86 : x
  2. Step 2: Convert to fraction form
    1,184,478.10/1,634,579.67 = 640,613.86/x
  3. Step 3: Cross multiply
    1,184,478.10x = 1,634,579.67 × 640,613.86
  4. Step 4: Simplify right side
    1,184,478.10x = 1,047,134,391,876.23
  5. Step 5: Solve for x
    x = 1,047,134,391,876.23/1,184,478.10
  6. Step 6: Final answer
    x = 884,047.07

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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.