Finding the Fourth Proportional to 986,354.53, 1,479,605.91 and 312,488.80
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Solution
The fourth proportional to 986,354.53, 1,479,605.91 and 312,488.80 is: 468,756.68
Step by Step Solution
- Step 1: Write the proportion equation
986,354.53 : 1,479,605.91 = 312,488.80 : x - Step 2: Convert to fraction form
986,354.53/1,479,605.91 = 312,488.80/x - Step 3: Cross multiply
986,354.53x = 1,479,605.91 × 312,488.80 - Step 4: Simplify right side
986,354.53x = 462,360,270,417.96 - Step 5: Solve for x
x = 462,360,270,417.96/986,354.53 - Step 6: Final answer
x = 468,756.68
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.