Home / 876,144.18-1,209,626.35-671,802.58

Finding the Fourth Proportional to 876,144.18, 1,209,626.35 and 671,802.58

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Solution

The fourth proportional to 876,144.18, 1,209,626.35 and 671,802.58 is: 927,507.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,144.18 : 1,209,626.35 = 671,802.58 : x
  2. Step 2: Convert to fraction form
    876,144.18/1,209,626.35 = 671,802.58/x
  3. Step 3: Cross multiply
    876,144.18x = 1,209,626.35 × 671,802.58
  4. Step 4: Simplify right side
    876,144.18x = 812,630,098,062.41
  5. Step 5: Solve for x
    x = 812,630,098,062.41/876,144.18
  6. Step 6: Final answer
    x = 927,507.27

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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.