Home / 716,600,300.81-988,399,018.01-478,325,350.55

Finding the Fourth Proportional to 716,600,300.81, 988,399,018.01 and 478,325,350.55

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Solution

The fourth proportional to 716,600,300.81, 988,399,018.01 and 478,325,350.55 is: 659,748,964.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,600,300.81 : 988,399,018.01 = 478,325,350.55 : x
  2. Step 2: Convert to fraction form
    716,600,300.81/988,399,018.01 = 478,325,350.55/x
  3. Step 3: Cross multiply
    716,600,300.81x = 988,399,018.01 × 478,325,350.55
  4. Step 4: Simplify right side
    716,600,300.81x = 472,776,306,765,575,424
  5. Step 5: Solve for x
    x = 472,776,306,765,575,424/716,600,300.81
  6. Step 6: Final answer
    x = 659,748,964.99

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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.