Home / 878,535.04-1,212,406.54-572,808.92

Finding the Fourth Proportional to 878,535.04, 1,212,406.54 and 572,808.92

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Solution

The fourth proportional to 878,535.04, 1,212,406.54 and 572,808.92 is: 790,494.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,535.04 : 1,212,406.54 = 572,808.92 : x
  2. Step 2: Convert to fraction form
    878,535.04/1,212,406.54 = 572,808.92/x
  3. Step 3: Cross multiply
    878,535.04x = 1,212,406.54 × 572,808.92
  4. Step 4: Simplify right side
    878,535.04x = 694,477,280,778.34
  5. Step 5: Solve for x
    x = 694,477,280,778.34/878,535.04
  6. Step 6: Final answer
    x = 790,494.69

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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.