Finding the Fourth Proportional to 553,292.64, 763,536.36 and 311,578.20
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Solution
The fourth proportional to 553,292.64, 763,536.36 and 311,578.20 is: 429,973.70
Step by Step Solution
- Step 1: Write the proportion equation
553,292.64 : 763,536.36 = 311,578.20 : x - Step 2: Convert to fraction form
553,292.64/763,536.36 = 311,578.20/x - Step 3: Cross multiply
553,292.64x = 763,536.36 × 311,578.20 - Step 4: Simplify right side
553,292.64x = 237,901,284,683.35 - Step 5: Solve for x
x = 237,901,284,683.35/553,292.64 - Step 6: Final answer
x = 429,973.70
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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.