Home / 670,279.50-1,004,852.84-290,913.36

Finding the Fourth Proportional to 670,279.50, 1,004,852.84 and 290,913.36

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Solution

The fourth proportional to 670,279.50, 1,004,852.84 and 290,913.36 is: 436,124.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,279.50 : 1,004,852.84 = 290,913.36 : x
  2. Step 2: Convert to fraction form
    670,279.50/1,004,852.84 = 290,913.36/x
  3. Step 3: Cross multiply
    670,279.50x = 1,004,852.84 × 290,913.36
  4. Step 4: Simplify right side
    670,279.50x = 292,325,114,535.38
  5. Step 5: Solve for x
    x = 292,325,114,535.38/670,279.50
  6. Step 6: Final answer
    x = 436,124.21

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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.