Finding the Fourth Proportional to 390,865.51, 586,303.12 and 106,570.09
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Solution
The fourth proportional to 390,865.51, 586,303.12 and 106,570.09 is: 159,856.46
Step by Step Solution
- Step 1: Write the proportion equation
390,865.51 : 586,303.12 = 106,570.09 : x - Step 2: Convert to fraction form
390,865.51/586,303.12 = 106,570.09/x - Step 3: Cross multiply
390,865.51x = 586,303.12 × 106,570.09 - Step 4: Simplify right side
390,865.51x = 62,482,374,533.50 - Step 5: Solve for x
x = 62,482,374,533.50/390,865.51 - Step 6: Final answer
x = 159,856.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.