Finding the Fourth Proportional to 905,785.36, 1,249,956.78 and 518,587.93
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Solution
The fourth proportional to 905,785.36, 1,249,956.78 and 518,587.93 is: 715,635.88
Step by Step Solution
- Step 1: Write the proportion equation
905,785.36 : 1,249,956.78 = 518,587.93 : x - Step 2: Convert to fraction form
905,785.36/1,249,956.78 = 518,587.93/x - Step 3: Cross multiply
905,785.36x = 1,249,956.78 × 518,587.93 - Step 4: Simplify right side
905,785.36x = 648,212,499,129.67 - Step 5: Solve for x
x = 648,212,499,129.67/905,785.36 - Step 6: Final answer
x = 715,635.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.