Home / 742,336.64-1,113,401.28-316,043.36

Finding the Fourth Proportional to 742,336.64, 1,113,401.28 and 316,043.36

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Solution

The fourth proportional to 742,336.64, 1,113,401.28 and 316,043.36 is: 474,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,336.64 : 1,113,401.28 = 316,043.36 : x
  2. Step 2: Convert to fraction form
    742,336.64/1,113,401.28 = 316,043.36/x
  3. Step 3: Cross multiply
    742,336.64x = 1,113,401.28 × 316,043.36
  4. Step 4: Simplify right side
    742,336.64x = 351,883,081,559.50
  5. Step 5: Solve for x
    x = 351,883,081,559.50/742,336.64
  6. Step 6: Final answer
    x = 474,020.90

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Double scale
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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.