Home / 738,390.60-1,107,585.90-402,467.40

Finding the Fourth Proportional to 738,390.60, 1,107,585.90 and 402,467.40

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Solution

The fourth proportional to 738,390.60, 1,107,585.90 and 402,467.40 is: 603,701.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,390.60 : 1,107,585.90 = 402,467.40 : x
  2. Step 2: Convert to fraction form
    738,390.60/1,107,585.90 = 402,467.40/x
  3. Step 3: Cross multiply
    738,390.60x = 1,107,585.90 × 402,467.40
  4. Step 4: Simplify right side
    738,390.60x = 445,767,217,449.66
  5. Step 5: Solve for x
    x = 445,767,217,449.66/738,390.60
  6. Step 6: Final answer
    x = 603,701.10

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1.5x scale

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.