Home / 909,328.36-1,363,845.60-429,555.16

Finding the Fourth Proportional to 909,328.36, 1,363,845.60 and 429,555.16

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Solution

The fourth proportional to 909,328.36, 1,363,845.60 and 429,555.16 is: 644,263.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,328.36 : 1,363,845.60 = 429,555.16 : x
  2. Step 2: Convert to fraction form
    909,328.36/1,363,845.60 = 429,555.16/x
  3. Step 3: Cross multiply
    909,328.36x = 1,363,845.60 × 429,555.16
  4. Step 4: Simplify right side
    909,328.36x = 585,846,914,923.30
  5. Step 5: Solve for x
    x = 585,846,914,923.30/909,328.36
  6. Step 6: Final answer
    x = 644,263.33

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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.