Home / 746,050.04-1,119,405.84-390,979.64

Finding the Fourth Proportional to 746,050.04, 1,119,405.84 and 390,979.64

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Solution

The fourth proportional to 746,050.04, 1,119,405.84 and 390,979.64 is: 586,642.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,050.04 : 1,119,405.84 = 390,979.64 : x
  2. Step 2: Convert to fraction form
    746,050.04/1,119,405.84 = 390,979.64/x
  3. Step 3: Cross multiply
    746,050.04x = 1,119,405.84 × 390,979.64
  4. Step 4: Simplify right side
    746,050.04x = 437,664,892,337.10
  5. Step 5: Solve for x
    x = 437,664,892,337.10/746,050.04
  6. Step 6: Final answer
    x = 586,642.81

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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.