Finding the Fourth Proportional to 989,704.80, 1,484,557.20 and 877,511.70
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Solution
The fourth proportional to 989,704.80, 1,484,557.20 and 877,511.70 is: 1,316,267.55
Step by Step Solution
- Step 1: Write the proportion equation
989,704.80 : 1,484,557.20 = 877,511.70 : x - Step 2: Convert to fraction form
989,704.80/1,484,557.20 = 877,511.70/x - Step 3: Cross multiply
989,704.80x = 1,484,557.20 × 877,511.70 - Step 4: Simplify right side
989,704.80x = 1,302,716,312,319.24 - Step 5: Solve for x
x = 1,302,716,312,319.24/989,704.80 - Step 6: Final answer
x = 1,316,267.55
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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.