Home / 1,095,671.80-1,642,730.10-421,492.60

Finding the Fourth Proportional to 1,095,671.80, 1,642,730.10 and 421,492.60

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Solution

The fourth proportional to 1,095,671.80, 1,642,730.10 and 421,492.60 is: 631,939.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,671.80 : 1,642,730.10 = 421,492.60 : x
  2. Step 2: Convert to fraction form
    1,095,671.80/1,642,730.10 = 421,492.60/x
  3. Step 3: Cross multiply
    1,095,671.80x = 1,642,730.10 × 421,492.60
  4. Step 4: Simplify right side
    1,095,671.80x = 692,398,580,947.26
  5. Step 5: Solve for x
    x = 692,398,580,947.26/1,095,671.80
  6. Step 6: Final answer
    x = 631,939.77

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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.