Home / 766,834.98-1,058,218.08-417,978.36

Finding the Fourth Proportional to 766,834.98, 1,058,218.08 and 417,978.36

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Solution

The fourth proportional to 766,834.98, 1,058,218.08 and 417,978.36 is: 576,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,834.98 : 1,058,218.08 = 417,978.36 : x
  2. Step 2: Convert to fraction form
    766,834.98/1,058,218.08 = 417,978.36/x
  3. Step 3: Cross multiply
    766,834.98x = 1,058,218.08 × 417,978.36
  4. Step 4: Simplify right side
    766,834.98x = 442,312,257,600.75
  5. Step 5: Solve for x
    x = 442,312,257,600.75/766,834.98
  6. Step 6: Final answer
    x = 576,802.40

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1.5x scale

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.