Home / 1,685,779.80-2,528,669.70-977,629.20

Finding the Fourth Proportional to 1,685,779.80, 2,528,669.70 and 977,629.20

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Solution

The fourth proportional to 1,685,779.80, 2,528,669.70 and 977,629.20 is: 1,466,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,779.80 : 2,528,669.70 = 977,629.20 : x
  2. Step 2: Convert to fraction form
    1,685,779.80/2,528,669.70 = 977,629.20/x
  3. Step 3: Cross multiply
    1,685,779.80x = 2,528,669.70 × 977,629.20
  4. Step 4: Simplify right side
    1,685,779.80x = 2,472,101,335,875.24
  5. Step 5: Solve for x
    x = 2,472,101,335,875.24/1,685,779.80
  6. Step 6: Final answer
    x = 1,466,443.80

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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.