Home / 859,150.80-1,288,337.40-385,592.40

Finding the Fourth Proportional to 859,150.80, 1,288,337.40 and 385,592.40

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Solution

The fourth proportional to 859,150.80, 1,288,337.40 and 385,592.40 is: 578,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,150.80 : 1,288,337.40 = 385,592.40 : x
  2. Step 2: Convert to fraction form
    859,150.80/1,288,337.40 = 385,592.40/x
  3. Step 3: Cross multiply
    859,150.80x = 1,288,337.40 × 385,592.40
  4. Step 4: Simplify right side
    859,150.80x = 496,773,110,075.76
  5. Step 5: Solve for x
    x = 496,773,110,075.76/859,150.80
  6. Step 6: Final answer
    x = 578,214.10

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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.