Home / 788,894.60-1,182,564.30-389,208.20

Finding the Fourth Proportional to 788,894.60, 1,182,564.30 and 389,208.20

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Solution

The fourth proportional to 788,894.60, 1,182,564.30 and 389,208.20 is: 583,428.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,894.60 : 1,182,564.30 = 389,208.20 : x
  2. Step 2: Convert to fraction form
    788,894.60/1,182,564.30 = 389,208.20/x
  3. Step 3: Cross multiply
    788,894.60x = 1,182,564.30 × 389,208.20
  4. Step 4: Simplify right side
    788,894.60x = 460,263,722,587.26
  5. Step 5: Solve for x
    x = 460,263,722,587.26/788,894.60
  6. Step 6: Final answer
    x = 583,428.66

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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.