Home / 817,108.40-1,225,813.20-367,840.24

Finding the Fourth Proportional to 817,108.40, 1,225,813.20 and 367,840.24

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Solution

The fourth proportional to 817,108.40, 1,225,813.20 and 367,840.24 is: 551,828.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,108.40 : 1,225,813.20 = 367,840.24 : x
  2. Step 2: Convert to fraction form
    817,108.40/1,225,813.20 = 367,840.24/x
  3. Step 3: Cross multiply
    817,108.40x = 1,225,813.20 × 367,840.24
  4. Step 4: Simplify right side
    817,108.40x = 450,903,421,683.17
  5. Step 5: Solve for x
    x = 450,903,421,683.17/817,108.40
  6. Step 6: Final answer
    x = 551,828.16

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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.