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Finding the Fourth Proportional to 710,888.96, 980,391.28 and 589,838.56

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Solution

The fourth proportional to 710,888.96, 980,391.28 and 589,838.56 is: 813,449.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,888.96 : 980,391.28 = 589,838.56 : x
  2. Step 2: Convert to fraction form
    710,888.96/980,391.28 = 589,838.56/x
  3. Step 3: Cross multiply
    710,888.96x = 980,391.28 × 589,838.56
  4. Step 4: Simplify right side
    710,888.96x = 578,272,580,831.76
  5. Step 5: Solve for x
    x = 578,272,580,831.76/710,888.96
  6. Step 6: Final answer
    x = 813,449.94

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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.