Home / 528,848.20-793,725.90-213,531.40

Finding the Fourth Proportional to 528,848.20, 793,725.90 and 213,531.40

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Solution

The fourth proportional to 528,848.20, 793,725.90 and 213,531.40 is: 320,480.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,848.20 : 793,725.90 = 213,531.40 : x
  2. Step 2: Convert to fraction form
    528,848.20/793,725.90 = 213,531.40/x
  3. Step 3: Cross multiply
    528,848.20x = 793,725.90 × 213,531.40
  4. Step 4: Simplify right side
    528,848.20x = 169,485,402,643.26
  5. Step 5: Solve for x
    x = 169,485,402,643.26/528,848.20
  6. Step 6: Final answer
    x = 320,480.25

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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.