Home / 1,489,752.32-2,055,854.40-810,688.64

Finding the Fourth Proportional to 1,489,752.32, 2,055,854.40 and 810,688.64

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Solution

The fourth proportional to 1,489,752.32, 2,055,854.40 and 810,688.64 is: 1,118,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,752.32 : 2,055,854.40 = 810,688.64 : x
  2. Step 2: Convert to fraction form
    1,489,752.32/2,055,854.40 = 810,688.64/x
  3. Step 3: Cross multiply
    1,489,752.32x = 2,055,854.40 × 810,688.64
  4. Step 4: Simplify right side
    1,489,752.32x = 1,666,657,807,574.02
  5. Step 5: Solve for x
    x = 1,666,657,807,574.02/1,489,752.32
  6. Step 6: Final answer
    x = 1,118,748.25

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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.