Home / 1,012,807.80-1,518,261.30-382,145.40

Finding the Fourth Proportional to 1,012,807.80, 1,518,261.30 and 382,145.40

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Solution

The fourth proportional to 1,012,807.80, 1,518,261.30 and 382,145.40 is: 572,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,807.80 : 1,518,261.30 = 382,145.40 : x
  2. Step 2: Convert to fraction form
    1,012,807.80/1,518,261.30 = 382,145.40/x
  3. Step 3: Cross multiply
    1,012,807.80x = 1,518,261.30 × 382,145.40
  4. Step 4: Simplify right side
    1,012,807.80x = 580,196,571,793.02
  5. Step 5: Solve for x
    x = 580,196,571,793.02/1,012,807.80
  6. Step 6: Final answer
    x = 572,859.50

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Double scale
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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.