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Finding the Fourth Proportional to 562,461.60, 776,186.64 and 307,807.68

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Solution

The fourth proportional to 562,461.60, 776,186.64 and 307,807.68 is: 424,768.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,461.60 : 776,186.64 = 307,807.68 : x
  2. Step 2: Convert to fraction form
    562,461.60/776,186.64 = 307,807.68/x
  3. Step 3: Cross multiply
    562,461.60x = 776,186.64 × 307,807.68
  4. Step 4: Simplify right side
    562,461.60x = 238,916,208,905.40
  5. Step 5: Solve for x
    x = 238,916,208,905.40/562,461.60
  6. Step 6: Final answer
    x = 424,768.92

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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.