Home / 1,390,402.60-2,085,603.90-1,232,938.60

Finding the Fourth Proportional to 1,390,402.60, 2,085,603.90 and 1,232,938.60

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Solution

The fourth proportional to 1,390,402.60, 2,085,603.90 and 1,232,938.60 is: 1,849,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,402.60 : 2,085,603.90 = 1,232,938.60 : x
  2. Step 2: Convert to fraction form
    1,390,402.60/2,085,603.90 = 1,232,938.60/x
  3. Step 3: Cross multiply
    1,390,402.60x = 2,085,603.90 × 1,232,938.60
  4. Step 4: Simplify right side
    1,390,402.60x = 2,571,421,552,620.54
  5. Step 5: Solve for x
    x = 2,571,421,552,620.54/1,390,402.60
  6. Step 6: Final answer
    x = 1,849,407.90

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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.