Home / 1,242,121.34-1,860,192.15-841,547.69

Finding the Fourth Proportional to 1,242,121.34, 1,860,192.15 and 841,547.69

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Solution

The fourth proportional to 1,242,121.34, 1,860,192.15 and 841,547.69 is: 1,260,295.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,121.34 : 1,860,192.15 = 841,547.69 : x
  2. Step 2: Convert to fraction form
    1,242,121.34/1,860,192.15 = 841,547.69/x
  3. Step 3: Cross multiply
    1,242,121.34x = 1,860,192.15 × 841,547.69
  4. Step 4: Simplify right side
    1,242,121.34x = 1,565,440,405,106.89
  5. Step 5: Solve for x
    x = 1,565,440,405,106.89/1,242,121.34
  6. Step 6: Final answer
    x = 1,260,295.87

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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.