Home / 1,078,216.40-1,617,324.60-912,328.40

Finding the Fourth Proportional to 1,078,216.40, 1,617,324.60 and 912,328.40

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Solution

The fourth proportional to 1,078,216.40, 1,617,324.60 and 912,328.40 is: 1,368,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,216.40 : 1,617,324.60 = 912,328.40 : x
  2. Step 2: Convert to fraction form
    1,078,216.40/1,617,324.60 = 912,328.40/x
  3. Step 3: Cross multiply
    1,078,216.40x = 1,617,324.60 × 912,328.40
  4. Step 4: Simplify right side
    1,078,216.40x = 1,475,531,164,598.64
  5. Step 5: Solve for x
    x = 1,475,531,164,598.64/1,078,216.40
  6. Step 6: Final answer
    x = 1,368,492.60

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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.