Home / 983,439.84-1,475,422.20-352,417.44

Finding the Fourth Proportional to 983,439.84, 1,475,422.20 and 352,417.44

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Solution

The fourth proportional to 983,439.84, 1,475,422.20 and 352,417.44 is: 528,720.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,439.84 : 1,475,422.20 = 352,417.44 : x
  2. Step 2: Convert to fraction form
    983,439.84/1,475,422.20 = 352,417.44/x
  3. Step 3: Cross multiply
    983,439.84x = 1,475,422.20 × 352,417.44
  4. Step 4: Simplify right side
    983,439.84x = 519,964,514,643.17
  5. Step 5: Solve for x
    x = 519,964,514,643.17/983,439.84
  6. Step 6: Final answer
    x = 528,720.21

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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.