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Finding the Fourth Proportional to 607,395.60, 910,510.20 and 472,384.80

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Solution

The fourth proportional to 607,395.60, 910,510.20 and 472,384.80 is: 708,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,395.60 : 910,510.20 = 472,384.80 : x
  2. Step 2: Convert to fraction form
    607,395.60/910,510.20 = 472,384.80/x
  3. Step 3: Cross multiply
    607,395.60x = 910,510.20 × 472,384.80
  4. Step 4: Simplify right side
    607,395.60x = 430,111,178,724.96
  5. Step 5: Solve for x
    x = 430,111,178,724.96/607,395.60
  6. Step 6: Final answer
    x = 708,123.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.