Finding the Fourth Proportional to 904,979.79, 1,249,089.62 and 518,019.53
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Solution
The fourth proportional to 904,979.79, 1,249,089.62 and 518,019.53 is: 714,991.45
Step by Step Solution
- Step 1: Write the proportion equation
904,979.79 : 1,249,089.62 = 518,019.53 : x - Step 2: Convert to fraction form
904,979.79/1,249,089.62 = 518,019.53/x - Step 3: Cross multiply
904,979.79x = 1,249,089.62 × 518,019.53 - Step 4: Simplify right side
904,979.79x = 647,052,809,044.73 - Step 5: Solve for x
x = 647,052,809,044.73/904,979.79 - Step 6: Final answer
x = 714,991.45
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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.