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Finding the Fourth Proportional to 713,254.81, 984,303.53 and 386,578.26

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Solution

The fourth proportional to 713,254.81, 984,303.53 and 386,578.26 is: 533,484.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,254.81 : 984,303.53 = 386,578.26 : x
  2. Step 2: Convert to fraction form
    713,254.81/984,303.53 = 386,578.26/x
  3. Step 3: Cross multiply
    713,254.81x = 984,303.53 × 386,578.26
  4. Step 4: Simplify right side
    713,254.81x = 380,510,341,017.74
  5. Step 5: Solve for x
    x = 380,510,341,017.74/713,254.81
  6. Step 6: Final answer
    x = 533,484.44

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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.