Finding the Fourth Proportional to 998,488.11, 1,498,106.16 and 518,416.23
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Solution
The fourth proportional to 998,488.11, 1,498,106.16 and 518,416.23 is: 777,818.52
Step by Step Solution
- Step 1: Write the proportion equation
998,488.11 : 1,498,106.16 = 518,416.23 : x - Step 2: Convert to fraction form
998,488.11/1,498,106.16 = 518,416.23/x - Step 3: Cross multiply
998,488.11x = 1,498,106.16 × 518,416.23 - Step 4: Simplify right side
998,488.11x = 776,642,547,606.98 - Step 5: Solve for x
x = 776,642,547,606.98/998,488.11 - Step 6: Final answer
x = 777,818.52
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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.