Home / 1,381,486.90-2,072,510.60-434,637.40

Finding the Fourth Proportional to 1,381,486.90, 2,072,510.60 and 434,637.40

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Solution

The fourth proportional to 1,381,486.90, 2,072,510.60 and 434,637.40 is: 652,044.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,486.90 : 2,072,510.60 = 434,637.40 : x
  2. Step 2: Convert to fraction form
    1,381,486.90/2,072,510.60 = 434,637.40/x
  3. Step 3: Cross multiply
    1,381,486.90x = 2,072,510.60 × 434,637.40
  4. Step 4: Simplify right side
    1,381,486.90x = 900,790,618,656.44
  5. Step 5: Solve for x
    x = 900,790,618,656.44/1,381,486.90
  6. Step 6: Final answer
    x = 652,044.27

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1.5x scale

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.