Home / 779,815.40-1,168,916.70-424,077.80

Finding the Fourth Proportional to 779,815.40, 1,168,916.70 and 424,077.80

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Solution

The fourth proportional to 779,815.40, 1,168,916.70 and 424,077.80 is: 635,678.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,815.40 : 1,168,916.70 = 424,077.80 : x
  2. Step 2: Convert to fraction form
    779,815.40/1,168,916.70 = 424,077.80/x
  3. Step 3: Cross multiply
    779,815.40x = 1,168,916.70 × 424,077.80
  4. Step 4: Simplify right side
    779,815.40x = 495,711,622,519.26
  5. Step 5: Solve for x
    x = 495,711,622,519.26/779,815.40
  6. Step 6: Final answer
    x = 635,678.17

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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.