Home / 1,130,673.20-1,696,009.80-1,118,863.40

Finding the Fourth Proportional to 1,130,673.20, 1,696,009.80 and 1,118,863.40

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Solution

The fourth proportional to 1,130,673.20, 1,696,009.80 and 1,118,863.40 is: 1,678,295.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,673.20 : 1,696,009.80 = 1,118,863.40 : x
  2. Step 2: Convert to fraction form
    1,130,673.20/1,696,009.80 = 1,118,863.40/x
  3. Step 3: Cross multiply
    1,130,673.20x = 1,696,009.80 × 1,118,863.40
  4. Step 4: Simplify right side
    1,130,673.20x = 1,897,603,291,261.32
  5. Step 5: Solve for x
    x = 1,897,603,291,261.32/1,130,673.20
  6. Step 6: Final answer
    x = 1,678,295.10

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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.