Home / 830,103.33-1,242,342.47-510,457.61

Finding the Fourth Proportional to 830,103.33, 1,242,342.47 and 510,457.61

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Solution

The fourth proportional to 830,103.33, 1,242,342.47 and 510,457.61 is: 763,956.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,103.33 : 1,242,342.47 = 510,457.61 : x
  2. Step 2: Convert to fraction form
    830,103.33/1,242,342.47 = 510,457.61/x
  3. Step 3: Cross multiply
    830,103.33x = 1,242,342.47 × 510,457.61
  4. Step 4: Simplify right side
    830,103.33x = 634,163,159,273.70
  5. Step 5: Solve for x
    x = 634,163,159,273.70/830,103.33
  6. Step 6: Final answer
    x = 763,956.89

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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.