Home / 1,638,670.40-2,458,120.80-929,038.40

Finding the Fourth Proportional to 1,638,670.40, 2,458,120.80 and 929,038.40

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Solution

The fourth proportional to 1,638,670.40, 2,458,120.80 and 929,038.40 is: 1,393,622.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,670.40 : 2,458,120.80 = 929,038.40 : x
  2. Step 2: Convert to fraction form
    1,638,670.40/2,458,120.80 = 929,038.40/x
  3. Step 3: Cross multiply
    1,638,670.40x = 2,458,120.80 × 929,038.40
  4. Step 4: Simplify right side
    1,638,670.40x = 2,283,688,615,038.72
  5. Step 5: Solve for x
    x = 2,283,688,615,038.72/1,638,670.40
  6. Step 6: Final answer
    x = 1,393,622.91

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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.