Home / 1,016,899.76-1,403,979.04-630,125.60

Finding the Fourth Proportional to 1,016,899.76, 1,403,979.04 and 630,125.60

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Solution

The fourth proportional to 1,016,899.76, 1,403,979.04 and 630,125.60 is: 869,980.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,899.76 : 1,403,979.04 = 630,125.60 : x
  2. Step 2: Convert to fraction form
    1,016,899.76/1,403,979.04 = 630,125.60/x
  3. Step 3: Cross multiply
    1,016,899.76x = 1,403,979.04 × 630,125.60
  4. Step 4: Simplify right side
    1,016,899.76x = 884,683,134,967.42
  5. Step 5: Solve for x
    x = 884,683,134,967.42/1,016,899.76
  6. Step 6: Final answer
    x = 869,980.67

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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.