Home / 971,343.64-1,340,421.03-535,778.29

Finding the Fourth Proportional to 971,343.64, 1,340,421.03 and 535,778.29

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Solution

The fourth proportional to 971,343.64, 1,340,421.03 and 535,778.29 is: 739,355.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,343.64 : 1,340,421.03 = 535,778.29 : x
  2. Step 2: Convert to fraction form
    971,343.64/1,340,421.03 = 535,778.29/x
  3. Step 3: Cross multiply
    971,343.64x = 1,340,421.03 × 535,778.29
  4. Step 4: Simplify right side
    971,343.64x = 718,168,483,982.39
  5. Step 5: Solve for x
    x = 718,168,483,982.39/971,343.64
  6. Step 6: Final answer
    x = 739,355.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.