Home / 996,140.80-1,492,840.65-426,840.40

Finding the Fourth Proportional to 996,140.80, 1,492,840.65 and 426,840.40

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Solution

The fourth proportional to 996,140.80, 1,492,840.65 and 426,840.40 is: 639,673.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,140.80 : 1,492,840.65 = 426,840.40 : x
  2. Step 2: Convert to fraction form
    996,140.80/1,492,840.65 = 426,840.40/x
  3. Step 3: Cross multiply
    996,140.80x = 1,492,840.65 × 426,840.40
  4. Step 4: Simplify right side
    996,140.80x = 637,204,700,182.26
  5. Step 5: Solve for x
    x = 637,204,700,182.26/996,140.80
  6. Step 6: Final answer
    x = 639,673.33

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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.