Home / 1,235,870.30-1,853,805.45-438,052.70

Finding the Fourth Proportional to 1,235,870.30, 1,853,805.45 and 438,052.70

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Solution

The fourth proportional to 1,235,870.30, 1,853,805.45 and 438,052.70 is: 657,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,870.30 : 1,853,805.45 = 438,052.70 : x
  2. Step 2: Convert to fraction form
    1,235,870.30/1,853,805.45 = 438,052.70/x
  3. Step 3: Cross multiply
    1,235,870.30x = 1,853,805.45 × 438,052.70
  4. Step 4: Simplify right side
    1,235,870.30x = 812,064,482,647.22
  5. Step 5: Solve for x
    x = 812,064,482,647.22/1,235,870.30
  6. Step 6: Final answer
    x = 657,079.05

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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.