Home / 1,559,580.80-2,154,140.88-1,129,179.20

Finding the Fourth Proportional to 1,559,580.80, 2,154,140.88 and 1,129,179.20

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Solution

The fourth proportional to 1,559,580.80, 2,154,140.88 and 1,129,179.20 is: 1,559,656.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559,580.80 : 2,154,140.88 = 1,129,179.20 : x
  2. Step 2: Convert to fraction form
    1,559,580.80/2,154,140.88 = 1,129,179.20/x
  3. Step 3: Cross multiply
    1,559,580.80x = 2,154,140.88 × 1,129,179.20
  4. Step 4: Simplify right side
    1,559,580.80x = 2,432,411,075,565.70
  5. Step 5: Solve for x
    x = 2,432,411,075,565.70/1,559,580.80
  6. Step 6: Final answer
    x = 1,559,656.98

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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.