Home / 821,746.90-1,232,900.58-442,706.53

Finding the Fourth Proportional to 821,746.90, 1,232,900.58 and 442,706.53

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Solution

The fourth proportional to 821,746.90, 1,232,900.58 and 442,706.53 is: 664,210.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,746.90 : 1,232,900.58 = 442,706.53 : x
  2. Step 2: Convert to fraction form
    821,746.90/1,232,900.58 = 442,706.53/x
  3. Step 3: Cross multiply
    821,746.90x = 1,232,900.58 × 442,706.53
  4. Step 4: Simplify right side
    821,746.90x = 545,813,137,606.79
  5. Step 5: Solve for x
    x = 545,813,137,606.79/821,746.90
  6. Step 6: Final answer
    x = 664,210.77

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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.