Home / 1,208,186.61-1,812,238.87-309,637.17

Finding the Fourth Proportional to 1,208,186.61, 1,812,238.87 and 309,637.17

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Solution

The fourth proportional to 1,208,186.61, 1,812,238.87 and 309,637.17 is: 464,445.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,186.61 : 1,812,238.87 = 309,637.17 : x
  2. Step 2: Convert to fraction form
    1,208,186.61/1,812,238.87 = 309,637.17/x
  3. Step 3: Cross multiply
    1,208,186.61x = 1,812,238.87 × 309,637.17
  4. Step 4: Simplify right side
    1,208,186.61x = 561,136,506,009.60
  5. Step 5: Solve for x
    x = 561,136,506,009.60/1,208,186.61
  6. Step 6: Final answer
    x = 464,445.23

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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.