Home / 1,403,720.64-2,106,410.40-517,878.72

Finding the Fourth Proportional to 1,403,720.64, 2,106,410.40 and 517,878.72

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Solution

The fourth proportional to 1,403,720.64, 2,106,410.40 and 517,878.72 is: 777,124.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,720.64 : 2,106,410.40 = 517,878.72 : x
  2. Step 2: Convert to fraction form
    1,403,720.64/2,106,410.40 = 517,878.72/x
  3. Step 3: Cross multiply
    1,403,720.64x = 2,106,410.40 × 517,878.72
  4. Step 4: Simplify right side
    1,403,720.64x = 1,090,865,121,746.69
  5. Step 5: Solve for x
    x = 1,090,865,121,746.69/1,403,720.64
  6. Step 6: Final answer
    x = 777,124.09

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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.