Home / 1,095,404.04-1,643,088.30-421,631.64

Finding the Fourth Proportional to 1,095,404.04, 1,643,088.30 and 421,631.64

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Solution

The fourth proportional to 1,095,404.04, 1,643,088.30 and 421,631.64 is: 632,440.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,404.04 : 1,643,088.30 = 421,631.64 : x
  2. Step 2: Convert to fraction form
    1,095,404.04/1,643,088.30 = 421,631.64/x
  3. Step 3: Cross multiply
    1,095,404.04x = 1,643,088.30 × 421,631.64
  4. Step 4: Simplify right side
    1,095,404.04x = 692,778,014,593.81
  5. Step 5: Solve for x
    x = 692,778,014,593.81/1,095,404.04
  6. Step 6: Final answer
    x = 632,440.62

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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.