Home / 692,830.80-1,039,246.20-319,582.80

Finding the Fourth Proportional to 692,830.80, 1,039,246.20 and 319,582.80

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Solution

The fourth proportional to 692,830.80, 1,039,246.20 and 319,582.80 is: 479,374.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,830.80 : 1,039,246.20 = 319,582.80 : x
  2. Step 2: Convert to fraction form
    692,830.80/1,039,246.20 = 319,582.80/x
  3. Step 3: Cross multiply
    692,830.80x = 1,039,246.20 × 319,582.80
  4. Step 4: Simplify right side
    692,830.80x = 332,125,210,485.36
  5. Step 5: Solve for x
    x = 332,125,210,485.36/692,830.80
  6. Step 6: Final answer
    x = 479,374.20

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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.