Finding the Fourth Proportional to 712,566.18, 983,306.25 and 390,277.71
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Solution
The fourth proportional to 712,566.18, 983,306.25 and 390,277.71 is: 538,564.03
Step by Step Solution
- Step 1: Write the proportion equation
712,566.18 : 983,306.25 = 390,277.71 : x - Step 2: Convert to fraction form
712,566.18/983,306.25 = 390,277.71/x - Step 3: Cross multiply
712,566.18x = 983,306.25 × 390,277.71 - Step 4: Simplify right side
712,566.18x = 383,762,511,478.69 - Step 5: Solve for x
x = 383,762,511,478.69/712,566.18 - Step 6: Final answer
x = 538,564.03
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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.