Home / 1,018,812.40-1,528,218.60-487,371.40

Finding the Fourth Proportional to 1,018,812.40, 1,528,218.60 and 487,371.40

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Solution

The fourth proportional to 1,018,812.40, 1,528,218.60 and 487,371.40 is: 731,057.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,812.40 : 1,528,218.60 = 487,371.40 : x
  2. Step 2: Convert to fraction form
    1,018,812.40/1,528,218.60 = 487,371.40/x
  3. Step 3: Cross multiply
    1,018,812.40x = 1,528,218.60 × 487,371.40
  4. Step 4: Simplify right side
    1,018,812.40x = 744,810,038,588.04
  5. Step 5: Solve for x
    x = 744,810,038,588.04/1,018,812.40
  6. Step 6: Final answer
    x = 731,057.10

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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.