Finding the Fourth Proportional to 870,483.98, 1,306,095.05 and 421,539.36
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Solution
The fourth proportional to 870,483.98, 1,306,095.05 and 421,539.36 is: 632,487.76
Step by Step Solution
- Step 1: Write the proportion equation
870,483.98 : 1,306,095.05 = 421,539.36 : x - Step 2: Convert to fraction form
870,483.98/1,306,095.05 = 421,539.36/x - Step 3: Cross multiply
870,483.98x = 1,306,095.05 × 421,539.36 - Step 4: Simplify right side
870,483.98x = 550,570,462,838.00 - Step 5: Solve for x
x = 550,570,462,838.00/870,483.98 - Step 6: Final answer
x = 632,487.76
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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.