Home / 1,985,220.20-2,977,830.30-489,312.20

Finding the Fourth Proportional to 1,985,220.20, 2,977,830.30 and 489,312.20

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Solution

The fourth proportional to 1,985,220.20, 2,977,830.30 and 489,312.20 is: 733,968.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,220.20 : 2,977,830.30 = 489,312.20 : x
  2. Step 2: Convert to fraction form
    1,985,220.20/2,977,830.30 = 489,312.20/x
  3. Step 3: Cross multiply
    1,985,220.20x = 2,977,830.30 × 489,312.20
  4. Step 4: Simplify right side
    1,985,220.20x = 1,457,088,695,319.66
  5. Step 5: Solve for x
    x = 1,457,088,695,319.66/1,985,220.20
  6. Step 6: Final answer
    x = 733,968.30

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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.