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Finding the Fourth Proportional to 493,048.40, 738,017.40 and 353,080.40

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Solution

The fourth proportional to 493,048.40, 738,017.40 and 353,080.40 is: 528,506.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,048.40 : 738,017.40 = 353,080.40 : x
  2. Step 2: Convert to fraction form
    493,048.40/738,017.40 = 353,080.40/x
  3. Step 3: Cross multiply
    493,048.40x = 738,017.40 × 353,080.40
  4. Step 4: Simplify right side
    493,048.40x = 260,579,478,798.96
  5. Step 5: Solve for x
    x = 260,579,478,798.96/493,048.40
  6. Step 6: Final answer
    x = 528,506.89

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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.