Finding the Fourth Proportional to 608,411.36, 839,719.98 and 390,891.94
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Solution
The fourth proportional to 608,411.36, 839,719.98 and 390,891.94 is: 539,503.03
Step by Step Solution
- Step 1: Write the proportion equation
608,411.36 : 839,719.98 = 390,891.94 : x - Step 2: Convert to fraction form
608,411.36/839,719.98 = 390,891.94/x - Step 3: Cross multiply
608,411.36x = 839,719.98 × 390,891.94 - Step 4: Simplify right side
608,411.36x = 328,239,772,038.96 - Step 5: Solve for x
x = 328,239,772,038.96/608,411.36 - Step 6: Final answer
x = 539,503.03
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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.