Home / 745,583.52-1,118,412.12-213,182.88

Finding the Fourth Proportional to 745,583.52, 1,118,412.12 and 213,182.88

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Solution

The fourth proportional to 745,583.52, 1,118,412.12 and 213,182.88 is: 319,784.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,583.52 : 1,118,412.12 = 213,182.88 : x
  2. Step 2: Convert to fraction form
    745,583.52/1,118,412.12 = 213,182.88/x
  3. Step 3: Cross multiply
    745,583.52x = 1,118,412.12 × 213,182.88
  4. Step 4: Simplify right side
    745,583.52x = 238,426,316,768.51
  5. Step 5: Solve for x
    x = 238,426,316,768.51/745,583.52
  6. Step 6: Final answer
    x = 319,784.85

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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.