Home / 807,897.40-1,210,463.70-512,063.80

Finding the Fourth Proportional to 807,897.40, 1,210,463.70 and 512,063.80

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Solution

The fourth proportional to 807,897.40, 1,210,463.70 and 512,063.80 is: 767,219.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,897.40 : 1,210,463.70 = 512,063.80 : x
  2. Step 2: Convert to fraction form
    807,897.40/1,210,463.70 = 512,063.80/x
  3. Step 3: Cross multiply
    807,897.40x = 1,210,463.70 × 512,063.80
  4. Step 4: Simplify right side
    807,897.40x = 619,834,641,984.06
  5. Step 5: Solve for x
    x = 619,834,641,984.06/807,897.40
  6. Step 6: Final answer
    x = 767,219.50

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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.