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Finding the Fourth Proportional to 478,319.40, 716,096.70 and 291,695.40

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Solution

The fourth proportional to 478,319.40, 716,096.70 and 291,695.40 is: 436,700.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,319.40 : 716,096.70 = 291,695.40 : x
  2. Step 2: Convert to fraction form
    478,319.40/716,096.70 = 291,695.40/x
  3. Step 3: Cross multiply
    478,319.40x = 716,096.70 × 291,695.40
  4. Step 4: Simplify right side
    478,319.40x = 208,882,113,345.18
  5. Step 5: Solve for x
    x = 208,882,113,345.18/478,319.40
  6. Step 6: Final answer
    x = 436,700.07

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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.