Home / 1,038,027.72-1,432,233.54-630,119.40

Finding the Fourth Proportional to 1,038,027.72, 1,432,233.54 and 630,119.40

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Solution

The fourth proportional to 1,038,027.72, 1,432,233.54 and 630,119.40 is: 869,416.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,027.72 : 1,432,233.54 = 630,119.40 : x
  2. Step 2: Convert to fraction form
    1,038,027.72/1,432,233.54 = 630,119.40/x
  3. Step 3: Cross multiply
    1,038,027.72x = 1,432,233.54 × 630,119.40
  4. Step 4: Simplify right side
    1,038,027.72x = 902,478,138,884.68
  5. Step 5: Solve for x
    x = 902,478,138,884.68/1,038,027.72
  6. Step 6: Final answer
    x = 869,416.22

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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.