Home / 1,140,820.20-1,574,343.54-631,511.64

Finding the Fourth Proportional to 1,140,820.20, 1,574,343.54 and 631,511.64

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Solution

The fourth proportional to 1,140,820.20, 1,574,343.54 and 631,511.64 is: 871,492.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,820.20 : 1,574,343.54 = 631,511.64 : x
  2. Step 2: Convert to fraction form
    1,140,820.20/1,574,343.54 = 631,511.64/x
  3. Step 3: Cross multiply
    1,140,820.20x = 1,574,343.54 × 631,511.64
  4. Step 4: Simplify right side
    1,140,820.20x = 994,216,270,868.81
  5. Step 5: Solve for x
    x = 994,216,270,868.81/1,140,820.20
  6. Step 6: Final answer
    x = 871,492.52

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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.