Home / 746,039.04-1,119,389.34-390,968.64

Finding the Fourth Proportional to 746,039.04, 1,119,389.34 and 390,968.64

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Solution

The fourth proportional to 746,039.04, 1,119,389.34 and 390,968.64 is: 586,626.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,039.04 : 1,119,389.34 = 390,968.64 : x
  2. Step 2: Convert to fraction form
    746,039.04/1,119,389.34 = 390,968.64/x
  3. Step 3: Cross multiply
    746,039.04x = 1,119,389.34 × 390,968.64
  4. Step 4: Simplify right side
    746,039.04x = 437,646,127,890.30
  5. Step 5: Solve for x
    x = 437,646,127,890.30/746,039.04
  6. Step 6: Final answer
    x = 586,626.31

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Double scale
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Similar ratio
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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.