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Finding the Fourth Proportional to 713,088.36, 984,063.33 and 390,810.42

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Solution

The fourth proportional to 713,088.36, 984,063.33 and 390,810.42 is: 539,319.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,088.36 : 984,063.33 = 390,810.42 : x
  2. Step 2: Convert to fraction form
    713,088.36/984,063.33 = 390,810.42/x
  3. Step 3: Cross multiply
    713,088.36x = 984,063.33 × 390,810.42
  4. Step 4: Simplify right side
    713,088.36x = 384,582,203,303.90
  5. Step 5: Solve for x
    x = 384,582,203,303.90/713,088.36
  6. Step 6: Final answer
    x = 539,319.14

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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.