Home / 820,050.40-1,230,075.60-503,480.80

Finding the Fourth Proportional to 820,050.40, 1,230,075.60 and 503,480.80

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Solution

The fourth proportional to 820,050.40, 1,230,075.60 and 503,480.80 is: 755,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,050.40 : 1,230,075.60 = 503,480.80 : x
  2. Step 2: Convert to fraction form
    820,050.40/1,230,075.60 = 503,480.80/x
  3. Step 3: Cross multiply
    820,050.40x = 1,230,075.60 × 503,480.80
  4. Step 4: Simplify right side
    820,050.40x = 619,319,447,148.48
  5. Step 5: Solve for x
    x = 619,319,447,148.48/820,050.40
  6. Step 6: Final answer
    x = 755,221.20

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1.5x scale

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.