Home / 1,938,038.31-2,674,492.91-1,078,801.55

Finding the Fourth Proportional to 1,938,038.31, 2,674,492.91 and 1,078,801.55

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Solution

The fourth proportional to 1,938,038.31, 2,674,492.91 and 1,078,801.55 is: 1,488,746.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,038.31 : 2,674,492.91 = 1,078,801.55 : x
  2. Step 2: Convert to fraction form
    1,938,038.31/2,674,492.91 = 1,078,801.55/x
  3. Step 3: Cross multiply
    1,938,038.31x = 2,674,492.91 × 1,078,801.55
  4. Step 4: Simplify right side
    1,938,038.31x = 2,885,247,102,109.74
  5. Step 5: Solve for x
    x = 2,885,247,102,109.74/1,938,038.31
  6. Step 6: Final answer
    x = 1,488,746.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.