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Finding the Fourth Proportional to 459,607.68, 634,289.60 and 258,417.28

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Solution

The fourth proportional to 459,607.68, 634,289.60 and 258,417.28 is: 356,633.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,607.68 : 634,289.60 = 258,417.28 : x
  2. Step 2: Convert to fraction form
    459,607.68/634,289.60 = 258,417.28/x
  3. Step 3: Cross multiply
    459,607.68x = 634,289.60 × 258,417.28
  4. Step 4: Simplify right side
    459,607.68x = 163,911,393,164.29
  5. Step 5: Solve for x
    x = 163,911,393,164.29/459,607.68
  6. Step 6: Final answer
    x = 356,633.28

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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.