Home / 634,870.04-876,131.40-348,416.80

Finding the Fourth Proportional to 634,870.04, 876,131.40 and 348,416.80

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Solution

The fourth proportional to 634,870.04, 876,131.40 and 348,416.80 is: 480,821.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,870.04 : 876,131.40 = 348,416.80 : x
  2. Step 2: Convert to fraction form
    634,870.04/876,131.40 = 348,416.80/x
  3. Step 3: Cross multiply
    634,870.04x = 876,131.40 × 348,416.80
  4. Step 4: Simplify right side
    634,870.04x = 305,258,898,767.52
  5. Step 5: Solve for x
    x = 305,258,898,767.52/634,870.04
  6. Step 6: Final answer
    x = 480,821.08

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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.