Home / 723,314.04-1,085,320.98-442,678.20

Finding the Fourth Proportional to 723,314.04, 1,085,320.98 and 442,678.20

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Solution

The fourth proportional to 723,314.04, 1,085,320.98 and 442,678.20 is: 664,231.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,314.04 : 1,085,320.98 = 442,678.20 : x
  2. Step 2: Convert to fraction form
    723,314.04/1,085,320.98 = 442,678.20/x
  3. Step 3: Cross multiply
    723,314.04x = 1,085,320.98 × 442,678.20
  4. Step 4: Simplify right side
    723,314.04x = 480,447,937,848.64
  5. Step 5: Solve for x
    x = 480,447,937,848.64/723,314.04
  6. Step 6: Final answer
    x = 664,231.46

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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.