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Finding the Fourth Proportional to 448,680.65, 619,407.86 and 346,476.67

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Solution

The fourth proportional to 448,680.65, 619,407.86 and 346,476.67 is: 478,314.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,680.65 : 619,407.86 = 346,476.67 : x
  2. Step 2: Convert to fraction form
    448,680.65/619,407.86 = 346,476.67/x
  3. Step 3: Cross multiply
    448,680.65x = 619,407.86 × 346,476.67
  4. Step 4: Simplify right side
    448,680.65x = 214,610,374,646.54
  5. Step 5: Solve for x
    x = 214,610,374,646.54/448,680.65
  6. Step 6: Final answer
    x = 478,314.31

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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.