Home / 917,905.09-1,376,382.47-412,030.46

Finding the Fourth Proportional to 917,905.09, 1,376,382.47 and 412,030.46

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Solution

The fourth proportional to 917,905.09, 1,376,382.47 and 412,030.46 is: 617,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,905.09 : 1,376,382.47 = 412,030.46 : x
  2. Step 2: Convert to fraction form
    917,905.09/1,376,382.47 = 412,030.46/x
  3. Step 3: Cross multiply
    917,905.09x = 1,376,382.47 × 412,030.46
  4. Step 4: Simplify right side
    917,905.09x = 567,111,499,852.19
  5. Step 5: Solve for x
    x = 567,111,499,852.19/917,905.09
  6. Step 6: Final answer
    x = 617,832.40

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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.