Home / 1,319,148.45-1,979,063.79-772,502.49

Finding the Fourth Proportional to 1,319,148.45, 1,979,063.79 and 772,502.49

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Solution

The fourth proportional to 1,319,148.45, 1,979,063.79 and 772,502.49 is: 1,158,953.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,148.45 : 1,979,063.79 = 772,502.49 : x
  2. Step 2: Convert to fraction form
    1,319,148.45/1,979,063.79 = 772,502.49/x
  3. Step 3: Cross multiply
    1,319,148.45x = 1,979,063.79 × 772,502.49
  4. Step 4: Simplify right side
    1,319,148.45x = 1,528,831,705,643.84
  5. Step 5: Solve for x
    x = 1,528,831,705,643.84/1,319,148.45
  6. Step 6: Final answer
    x = 1,158,953.49

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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.