Home / 779,810.40-1,168,909.20-424,072.80

Finding the Fourth Proportional to 779,810.40, 1,168,909.20 and 424,072.80

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Solution

The fourth proportional to 779,810.40, 1,168,909.20 and 424,072.80 is: 635,670.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,810.40 : 1,168,909.20 = 424,072.80 : x
  2. Step 2: Convert to fraction form
    779,810.40/1,168,909.20 = 424,072.80/x
  3. Step 3: Cross multiply
    779,810.40x = 1,168,909.20 × 424,072.80
  4. Step 4: Simplify right side
    779,810.40x = 495,702,597,389.76
  5. Step 5: Solve for x
    x = 495,702,597,389.76/779,810.40
  6. Step 6: Final answer
    x = 635,670.67

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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.