Home / 1,053,630.63-1,452,798.20-778,386.71

Finding the Fourth Proportional to 1,053,630.63, 1,452,798.20 and 778,386.71

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Solution

The fourth proportional to 1,053,630.63, 1,452,798.20 and 778,386.71 is: 1,073,278.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,630.63 : 1,452,798.20 = 778,386.71 : x
  2. Step 2: Convert to fraction form
    1,053,630.63/1,452,798.20 = 778,386.71/x
  3. Step 3: Cross multiply
    1,053,630.63x = 1,452,798.20 × 778,386.71
  4. Step 4: Simplify right side
    1,053,630.63x = 1,130,838,816,769.88
  5. Step 5: Solve for x
    x = 1,130,838,816,769.88/1,053,630.63
  6. Step 6: Final answer
    x = 1,073,278.23

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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.