Home / 700,420.41-966,724.65-455,710.95

Finding the Fourth Proportional to 700,420.41, 966,724.65 and 455,710.95

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Solution

The fourth proportional to 700,420.41, 966,724.65 and 455,710.95 is: 628,975.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,420.41 : 966,724.65 = 455,710.95 : x
  2. Step 2: Convert to fraction form
    700,420.41/966,724.65 = 455,710.95/x
  3. Step 3: Cross multiply
    700,420.41x = 966,724.65 × 455,710.95
  4. Step 4: Simplify right side
    700,420.41x = 440,547,008,639.92
  5. Step 5: Solve for x
    x = 440,547,008,639.92/700,420.41
  6. Step 6: Final answer
    x = 628,975.12

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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.