Home / 1,139,411.60-1,708,987.80-298,048.40

Finding the Fourth Proportional to 1,139,411.60, 1,708,987.80 and 298,048.40

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Solution

The fourth proportional to 1,139,411.60, 1,708,987.80 and 298,048.40 is: 447,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,411.60 : 1,708,987.80 = 298,048.40 : x
  2. Step 2: Convert to fraction form
    1,139,411.60/1,708,987.80 = 298,048.40/x
  3. Step 3: Cross multiply
    1,139,411.60x = 1,708,987.80 × 298,048.40
  4. Step 4: Simplify right side
    1,139,411.60x = 509,361,079,409.52
  5. Step 5: Solve for x
    x = 509,361,079,409.52/1,139,411.60
  6. Step 6: Final answer
    x = 447,038.70

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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.