Home / 759,686.34-1,048,386.59-457,899.78

Finding the Fourth Proportional to 759,686.34, 1,048,386.59 and 457,899.78

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Solution

The fourth proportional to 759,686.34, 1,048,386.59 and 457,899.78 is: 631,913.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,686.34 : 1,048,386.59 = 457,899.78 : x
  2. Step 2: Convert to fraction form
    759,686.34/1,048,386.59 = 457,899.78/x
  3. Step 3: Cross multiply
    759,686.34x = 1,048,386.59 × 457,899.78
  4. Step 4: Simplify right side
    759,686.34x = 480,055,994,850.71
  5. Step 5: Solve for x
    x = 480,055,994,850.71/759,686.34
  6. Step 6: Final answer
    x = 631,913.42

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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.