Home / 907,336.80-1,361,005.20-402,139.80

Finding the Fourth Proportional to 907,336.80, 1,361,005.20 and 402,139.80

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Solution

The fourth proportional to 907,336.80, 1,361,005.20 and 402,139.80 is: 603,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,336.80 : 1,361,005.20 = 402,139.80 : x
  2. Step 2: Convert to fraction form
    907,336.80/1,361,005.20 = 402,139.80/x
  3. Step 3: Cross multiply
    907,336.80x = 1,361,005.20 × 402,139.80
  4. Step 4: Simplify right side
    907,336.80x = 547,314,358,926.96
  5. Step 5: Solve for x
    x = 547,314,358,926.96/907,336.80
  6. Step 6: Final answer
    x = 603,209.70

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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.