Finding the Fourth Proportional to 528,428.58, 724,747.71 and 506,727.88
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Solution
The fourth proportional to 528,428.58, 724,747.71 and 506,727.88 is: 694,984.88
Step by Step Solution
- Step 1: Write the proportion equation
528,428.58 : 724,747.71 = 506,727.88 : x - Step 2: Convert to fraction form
528,428.58/724,747.71 = 506,727.88/x - Step 3: Cross multiply
528,428.58x = 724,747.71 × 506,727.88 - Step 4: Simplify right side
528,428.58x = 367,249,870,623.16 - Step 5: Solve for x
x = 367,249,870,623.16/528,428.58 - Step 6: Final answer
x = 694,984.88
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.