Home / 672,152.40-1,008,228.60-620,830.80

Finding the Fourth Proportional to 672,152.40, 1,008,228.60 and 620,830.80

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Solution

The fourth proportional to 672,152.40, 1,008,228.60 and 620,830.80 is: 931,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,152.40 : 1,008,228.60 = 620,830.80 : x
  2. Step 2: Convert to fraction form
    672,152.40/1,008,228.60 = 620,830.80/x
  3. Step 3: Cross multiply
    672,152.40x = 1,008,228.60 × 620,830.80
  4. Step 4: Simplify right side
    672,152.40x = 625,939,368,320.88
  5. Step 5: Solve for x
    x = 625,939,368,320.88/672,152.40
  6. Step 6: Final answer
    x = 931,246.20

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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.