Finding the Fourth Proportional to 989,812.70, 1,484,767.65 and 517,420.70
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Solution
The fourth proportional to 989,812.70, 1,484,767.65 and 517,420.70 is: 776,156.46
Step by Step Solution
- Step 1: Write the proportion equation
989,812.70 : 1,484,767.65 = 517,420.70 : x - Step 2: Convert to fraction form
989,812.70/1,484,767.65 = 517,420.70/x - Step 3: Cross multiply
989,812.70x = 1,484,767.65 × 517,420.70 - Step 4: Simplify right side
989,812.70x = 768,249,516,800.36 - Step 5: Solve for x
x = 768,249,516,800.36/989,812.70 - Step 6: Final answer
x = 776,156.46
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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.