Home / 2,985,890.40-4,478,835.60-742,028.40

Finding the Fourth Proportional to 2,985,890.40, 4,478,835.60 and 742,028.40

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Solution

The fourth proportional to 2,985,890.40, 4,478,835.60 and 742,028.40 is: 1,113,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985,890.40 : 4,478,835.60 = 742,028.40 : x
  2. Step 2: Convert to fraction form
    2,985,890.40/4,478,835.60 = 742,028.40/x
  3. Step 3: Cross multiply
    2,985,890.40x = 4,478,835.60 × 742,028.40
  4. Step 4: Simplify right side
    2,985,890.40x = 3,323,423,214,131.04
  5. Step 5: Solve for x
    x = 3,323,423,214,131.04/2,985,890.40
  6. Step 6: Final answer
    x = 1,113,042.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.