Home / 530,664.90-732,308.07-288,943.08

Finding the Fourth Proportional to 530,664.90, 732,308.07 and 288,943.08

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Solution

The fourth proportional to 530,664.90, 732,308.07 and 288,943.08 is: 398,736.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,664.90 : 732,308.07 = 288,943.08 : x
  2. Step 2: Convert to fraction form
    530,664.90/732,308.07 = 288,943.08/x
  3. Step 3: Cross multiply
    530,664.90x = 732,308.07 × 288,943.08
  4. Step 4: Simplify right side
    530,664.90x = 211,595,349,254.66
  5. Step 5: Solve for x
    x = 211,595,349,254.66/530,664.90
  6. Step 6: Final answer
    x = 398,736.28

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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.