Home / 1,070,554.28-1,604,431.58-438,728.36

Finding the Fourth Proportional to 1,070,554.28, 1,604,431.58 and 438,728.36

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Solution

The fourth proportional to 1,070,554.28, 1,604,431.58 and 438,728.36 is: 657,518.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,554.28 : 1,604,431.58 = 438,728.36 : x
  2. Step 2: Convert to fraction form
    1,070,554.28/1,604,431.58 = 438,728.36/x
  3. Step 3: Cross multiply
    1,070,554.28x = 1,604,431.58 × 438,728.36
  4. Step 4: Simplify right side
    1,070,554.28x = 703,909,635,825.61
  5. Step 5: Solve for x
    x = 703,909,635,825.61/1,070,554.28
  6. Step 6: Final answer
    x = 657,518.87

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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.