Home / 860,030.65-1,186,739.16-472,782.21

Finding the Fourth Proportional to 860,030.65, 1,186,739.16 and 472,782.21

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Solution

The fourth proportional to 860,030.65, 1,186,739.16 and 472,782.21 is: 652,382.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,030.65 : 1,186,739.16 = 472,782.21 : x
  2. Step 2: Convert to fraction form
    860,030.65/1,186,739.16 = 472,782.21/x
  3. Step 3: Cross multiply
    860,030.65x = 1,186,739.16 × 472,782.21
  4. Step 4: Simplify right side
    860,030.65x = 561,069,162,758.34
  5. Step 5: Solve for x
    x = 561,069,162,758.34/860,030.65
  6. Step 6: Final answer
    x = 652,382.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.