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Finding the Fourth Proportional to 634,870.53, 876,146.59 and 348,400.87

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Solution

The fourth proportional to 634,870.53, 876,146.59 and 348,400.87 is: 480,807.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,870.53 : 876,146.59 = 348,400.87 : x
  2. Step 2: Convert to fraction form
    634,870.53/876,146.59 = 348,400.87/x
  3. Step 3: Cross multiply
    634,870.53x = 876,146.59 × 348,400.87
  4. Step 4: Simplify right side
    634,870.53x = 305,250,232,448.67
  5. Step 5: Solve for x
    x = 305,250,232,448.67/634,870.53
  6. Step 6: Final answer
    x = 480,807.06

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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.