Home / 1,130,440.90-1,559,975.88-646,989.61

Finding the Fourth Proportional to 1,130,440.90, 1,559,975.88 and 646,989.61

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Solution

The fourth proportional to 1,130,440.90, 1,559,975.88 and 646,989.61 is: 892,827.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,440.90 : 1,559,975.88 = 646,989.61 : x
  2. Step 2: Convert to fraction form
    1,130,440.90/1,559,975.88 = 646,989.61/x
  3. Step 3: Cross multiply
    1,130,440.90x = 1,559,975.88 × 646,989.61
  4. Step 4: Simplify right side
    1,130,440.90x = 1,009,288,186,210.61
  5. Step 5: Solve for x
    x = 1,009,288,186,210.61/1,130,440.90
  6. Step 6: Final answer
    x = 892,827.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.