Home / 746,643.38-1,030,368.90-407,111.64

Finding the Fourth Proportional to 746,643.38, 1,030,368.90 and 407,111.64

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Solution

The fourth proportional to 746,643.38, 1,030,368.90 and 407,111.64 is: 561,814.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,643.38 : 1,030,368.90 = 407,111.64 : x
  2. Step 2: Convert to fraction form
    746,643.38/1,030,368.90 = 407,111.64/x
  3. Step 3: Cross multiply
    746,643.38x = 1,030,368.90 × 407,111.64
  4. Step 4: Simplify right side
    746,643.38x = 419,475,172,684.00
  5. Step 5: Solve for x
    x = 419,475,172,684.00/746,643.38
  6. Step 6: Final answer
    x = 561,814.63

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.