Home / 1,095,397.30-1,643,078.12-421,624.96

Finding the Fourth Proportional to 1,095,397.30, 1,643,078.12 and 421,624.96

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Solution

The fourth proportional to 1,095,397.30, 1,643,078.12 and 421,624.96 is: 632,430.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,397.30 : 1,643,078.12 = 421,624.96 : x
  2. Step 2: Convert to fraction form
    1,095,397.30/1,643,078.12 = 421,624.96/x
  3. Step 3: Cross multiply
    1,095,397.30x = 1,643,078.12 × 421,624.96
  4. Step 4: Simplify right side
    1,095,397.30x = 692,762,746,621.88
  5. Step 5: Solve for x
    x = 692,762,746,621.88/1,095,397.30
  6. Step 6: Final answer
    x = 632,430.58

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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.