Home / 1,090,698.56-1,636,441.56-380,831.20

Finding the Fourth Proportional to 1,090,698.56, 1,636,441.56 and 380,831.20

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Solution

The fourth proportional to 1,090,698.56, 1,636,441.56 and 380,831.20 is: 571,384.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,698.56 : 1,636,441.56 = 380,831.20 : x
  2. Step 2: Convert to fraction form
    1,090,698.56/1,636,441.56 = 380,831.20/x
  3. Step 3: Cross multiply
    1,090,698.56x = 1,636,441.56 × 380,831.20
  4. Step 4: Simplify right side
    1,090,698.56x = 623,208,003,024.67
  5. Step 5: Solve for x
    x = 623,208,003,024.67/1,090,698.56
  6. Step 6: Final answer
    x = 571,384.27

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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.