Home / 1,392,010.98-1,918,962.23-977,285.19

Finding the Fourth Proportional to 1,392,010.98, 1,918,962.23 and 977,285.19

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Solution

The fourth proportional to 1,392,010.98, 1,918,962.23 and 977,285.19 is: 1,347,240.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,010.98 : 1,918,962.23 = 977,285.19 : x
  2. Step 2: Convert to fraction form
    1,392,010.98/1,918,962.23 = 977,285.19/x
  3. Step 3: Cross multiply
    1,392,010.98x = 1,918,962.23 × 977,285.19
  4. Step 4: Simplify right side
    1,392,010.98x = 1,875,373,360,488.32
  5. Step 5: Solve for x
    x = 1,875,373,360,488.32/1,392,010.98
  6. Step 6: Final answer
    x = 1,347,240.35

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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.