Home / 1,430,103.60-2,143,405.80-630,536.40

Finding the Fourth Proportional to 1,430,103.60, 2,143,405.80 and 630,536.40

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Solution

The fourth proportional to 1,430,103.60, 2,143,405.80 and 630,536.40 is: 945,033.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,103.60 : 2,143,405.80 = 630,536.40 : x
  2. Step 2: Convert to fraction form
    1,430,103.60/2,143,405.80 = 630,536.40/x
  3. Step 3: Cross multiply
    1,430,103.60x = 2,143,405.80 × 630,536.40
  4. Step 4: Simplify right side
    1,430,103.60x = 1,351,495,376,871.12
  5. Step 5: Solve for x
    x = 1,351,495,376,871.12/1,430,103.60
  6. Step 6: Final answer
    x = 945,033.20

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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.