Home / 1,403,807.40-2,105,711.10-457,273.80

Finding the Fourth Proportional to 1,403,807.40, 2,105,711.10 and 457,273.80

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Solution

The fourth proportional to 1,403,807.40, 2,105,711.10 and 457,273.80 is: 685,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,807.40 : 2,105,711.10 = 457,273.80 : x
  2. Step 2: Convert to fraction form
    1,403,807.40/2,105,711.10 = 457,273.80/x
  3. Step 3: Cross multiply
    1,403,807.40x = 2,105,711.10 × 457,273.80
  4. Step 4: Simplify right side
    1,403,807.40x = 962,886,516,399.18
  5. Step 5: Solve for x
    x = 962,886,516,399.18/1,403,807.40
  6. Step 6: Final answer
    x = 685,910.70

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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.