Home / 1,238,225.04-1,708,026.60-778,612.20

Finding the Fourth Proportional to 1,238,225.04, 1,708,026.60 and 778,612.20

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Solution

The fourth proportional to 1,238,225.04, 1,708,026.60 and 778,612.20 is: 1,074,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,225.04 : 1,708,026.60 = 778,612.20 : x
  2. Step 2: Convert to fraction form
    1,238,225.04/1,708,026.60 = 778,612.20/x
  3. Step 3: Cross multiply
    1,238,225.04x = 1,708,026.60 × 778,612.20
  4. Step 4: Simplify right side
    1,238,225.04x = 1,329,890,348,684.52
  5. Step 5: Solve for x
    x = 1,329,890,348,684.52/1,238,225.04
  6. Step 6: Final answer
    x = 1,074,029.60

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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.