Home / 869,499.38-1,199,921.40-525,287.45

Finding the Fourth Proportional to 869,499.38, 1,199,921.40 and 525,287.45

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Solution

The fourth proportional to 869,499.38, 1,199,921.40 and 525,287.45 is: 724,904.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,499.38 : 1,199,921.40 = 525,287.45 : x
  2. Step 2: Convert to fraction form
    869,499.38/1,199,921.40 = 525,287.45/x
  3. Step 3: Cross multiply
    869,499.38x = 1,199,921.40 × 525,287.45
  4. Step 4: Simplify right side
    869,499.38x = 630,303,646,406.82
  5. Step 5: Solve for x
    x = 630,303,646,406.82/869,499.38
  6. Step 6: Final answer
    x = 724,904.08

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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.