Home / 872,459.42-1,203,995.88-490,489.34

Finding the Fourth Proportional to 872,459.42, 1,203,995.88 and 490,489.34

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Solution

The fourth proportional to 872,459.42, 1,203,995.88 and 490,489.34 is: 676,876.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,459.42 : 1,203,995.88 = 490,489.34 : x
  2. Step 2: Convert to fraction form
    872,459.42/1,203,995.88 = 490,489.34/x
  3. Step 3: Cross multiply
    872,459.42x = 1,203,995.88 × 490,489.34
  4. Step 4: Simplify right side
    872,459.42x = 590,547,144,543.92
  5. Step 5: Solve for x
    x = 590,547,144,543.92/872,459.42
  6. Step 6: Final answer
    x = 676,876.35

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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.