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Finding the Fourth Proportional to 507,090.86, 761,018.88 and 346,783.76

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Solution

The fourth proportional to 507,090.86, 761,018.88 and 346,783.76 is: 520,437.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,090.86 : 761,018.88 = 346,783.76 : x
  2. Step 2: Convert to fraction form
    507,090.86/761,018.88 = 346,783.76/x
  3. Step 3: Cross multiply
    507,090.86x = 761,018.88 × 346,783.76
  4. Step 4: Simplify right side
    507,090.86x = 263,908,988,637.39
  5. Step 5: Solve for x
    x = 263,908,988,637.39/507,090.86
  6. Step 6: Final answer
    x = 520,437.28

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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.