Home / 1,239,985.02-1,860,137.91-855,018.35

Finding the Fourth Proportional to 1,239,985.02, 1,860,137.91 and 855,018.35

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Solution

The fourth proportional to 1,239,985.02, 1,860,137.91 and 855,018.35 is: 1,282,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,985.02 : 1,860,137.91 = 855,018.35 : x
  2. Step 2: Convert to fraction form
    1,239,985.02/1,860,137.91 = 855,018.35/x
  3. Step 3: Cross multiply
    1,239,985.02x = 1,860,137.91 × 855,018.35
  4. Step 4: Simplify right side
    1,239,985.02x = 1,590,452,033,004.87
  5. Step 5: Solve for x
    x = 1,590,452,033,004.87/1,239,985.02
  6. Step 6: Final answer
    x = 1,282,638.10

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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.